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Onza Ska

Product code: 11579

£374.99RRP: £432.50(Save 13%)

In stock

Onza Ska

Dispatch time 1-2 days - this bike is assembled in our workshop before dispatch. Minor assembly required on arrival, details supplied with bike.

Our best-selling Onza trials bike, the Ska has great components throughout and a vibrant paint scheme.

- Excellent value 20" wheel trials bike from Onza with a 19" rear wheel, ideal for beginner or fast learning riders.
- High grade 7005-T6 aluminium frame with head tube reinforcing gussets.
- Tough Onza cromoly forks.
- Both frame and fork are fitted with 4-Bolt mounts and V-Brake adaptors, making it easy to upgrade to hydraulic rim brakes in future if you wish.
- Powerful Onza DD 'V' brake at the front and rear are fitted with upgraded sticky V-Brake Pads, offering great stopping power!
- Drilled light weight single wall rim at the front reduces weight while the drilled 19" rear rim is double walled for extra strength and durability.
- Fitted with Onza's new Sticky Fingers 2 tyres, 20 x 2.0" front and 19 x 2.5" rear.
- Onza crankset fitted with a 30-engagement front freewheel and Comp-style bashring, with a 12t fixed sprocket on the rear wheel giving the ideal gear ratio for 20" bikes.
- Bash/ski-plate fitted as standard.
- Onza cromo riser 31.8mm trials handlebar.
- Onza alloy 31.8mm stem to reduce weight.
- New Onza caged pedals.
- Seatless design saves weight and increases stand over clearance.
- Satin blue finish with orange and yellow accents.
- Weight: 10.80kg


Wheelbase: 1010mm
Chainstay Length: 350mm
BB Rise: 70mm

This bike is supplied with a 6 month warranty covering manufacturing and materials defects. The warranty does not cover mistreatment or poor maintenance. Please ensure all the details on the warranty sheet supplied with the bike are adhered to. Certain circumstances (such as stripped threads or rounded crank arm tapers) only occur due to a lack of correct maintenance and all manufacturers are aware of these situations, so any claims due to incorrect maintenance procedures are much less likely to be successful.

We build this bike to a 100% complete state in our workshop before dispatch to ensure all items are manufactured correctly and nothing is missing, but we do have to remove some parts to ensure there is no damage during transit. You will need some basic tools (usually 4mm, 5mm, 6mm and 8mm allen keys and a 15mm spanner) for final assembly upon arrival. We have a video guide here to help, but please don't hesitate to contact us if you require any further assistance.



Can you fit Magura HS33's on this bike?

Posted by Ryan on 29/05/2011

Reply from TartyBikes on 01/06/2011

Hi Ryan - You'd need to use the Magura Evo 2 Brake Adaptor Kit to fit them, but HS33s should go on fine. Thanks, Mark


Is the bottom bracket ISIS or square taper?

Posted by matt on 30/05/2011

Reply from TartyBikes on 01/06/2011

Hi Matt - This bike has a square taper BB. Thanks, Mark


Hi I was just wondering if this bike would be ok for me because I'm thinking about taking up trials biking. Also would the bike me the right weight for me as im 5ft 12

Posted by chuggy on 30/05/2011

Reply from TartyBikes on 01/06/2011

Hello - This bike should be good to start riding trials on. It's got a generally good spec (especially for the price), and has some well-proven geometry, so I think it should be a good bike to get started out on. We don't have a definite weight for them yet, but the Onza range are usually fairly good in terms of weight so I can't see it being a problem. Thanks, Mark


Does the bike come all ready to go or will I have to put it together my self?

Posted by chuggy on 02/06/2011

Reply from TartyBikes on 03/06/2011

Hello - We spend about an hour assembling and setting up each bike before it leaves us, something not a lot of other companies do! When the bike is sent out we have to do certain things like taking the front wheel off to try and keep the box size down for our courier - there's a video-guide on our website for how to complete the bike once you receive it, click here for more information: http://www.tartybikes.co.uk/media/guides/maintenance_bike_assembly/m4.html You'll also receive a free T-Shirt, chainstay protector and TartyBikes MultiTool with any Onza bike. Thanks, Mark


are these brakes good and is this a good bike ??

Posted by tim on 09/06/2011

Reply from TartyBikes on 10/06/2011

Hi Tim - The Ska is fitted with the Onza Pro Series brake pads, so the brakes are very good on this bike! They feel very powerful and responsive, so even though they're not as expensive as something like a Magura hydraulic rim brake, they can still work very well. The spec of the bike in general is also at a pretty high standard throughout - having a front freewheel setup on a bike at this price is quite impressive, as are drilled rims. Overall it seems like a great bike for the money. We have some more photos of the bike to add to our website, so these should be up in the next few days. Thanks, Mark


is the sproket the same size as the onza pro ??

Posted by rob on 30/06/2011

Reply from TartyBikes on 30/06/2011

Hi Rob - Both bikes use an 18t freewheel on the crank arm, and a 12t sprocket on the rear hub. Thanks, Mark


what is the picture on the top of the frame is it bruno mars

Posted by rob on 10/07/2011

Reply from TartyBikes on 11/07/2011

Hi Rob - I'm not sure which singer it is in particular, but it doesn't appear to be Bruno Mars. Thanks, Mark


I was going to get the onza zoot 2010 but they've stopped selling it for the price i had so Im getting this my question is when riding this bike what gear would the pedaling be if it was a mountain bike?

Posted by Jordan on 31/08/2011

Reply from TartyBikes on 01/09/2011

Hi Jordan - It's difficult to say for definite as the difference in wheel size means the gear ratio feels different (using an 18:12 gear ratio on a mountain bike wouldn't feel the same as an 18:12 ratio on the Ska), but it would be roughly the equivalent of the smallest ring at the front and around a middle gear on your rear cassette. Thanks, Mark

Ryan Band

Hi would this bike be suitable for a 16 year old and will you still be selling this bike at Christmas or will there be a 2012 version if there is would it be about the same price and what psi do you need in both tyres thanks

Posted by Ryan Band on 04/09/2011

Reply from TartyBikes on 05/09/2011

Hi Ryan - We don't expect there to be a newer version of the Ska until later in 2012, so we'll be stocking this current version of the Ska for the foreseeable future. Regarding tyre pressures, I'd usually recommend pumping them up to around 30psi, then gradually letting air out whilst you're riding until they feel right for you. The pressure depends on your size and riding style, so there's no 'right' pressure. Thanks, Mark

Mickey Harman

How long till the bike is in stock?

Posted by Mickey Harman on 07/09/2011

Reply from TartyBikes on 07/09/2011

Hi Mickey - We're expecting Onza to have more of these bikes in stock at the start of October, so we should hopefully be able to re-stock them in the first 1-2 weeks of October. Thanks, Mark


hello just wondering if you can put hydrolic rim brakes on this bike??

Posted by joe on 02/10/2011

Reply from TartyBikes on 03/10/2011

Hi Joe - That would be fine as long as you use the Magura Evo 2 Adaptor Kit to mount them. Thanks, Mark

Lee Ryder

Hello, apologies if you have been asked this question a thousand times before, but I was wondering whether or not this bike would be suitable for my build. I am around 5ft9 and about 10 and a half stone. would the size of this bike's frame accommodate me well? I've had a look around for the information for a while but can't seem to get a solid answer. My only concern is buying a frame this size and it being too small! Thank you for your time.

Posted by Lee Ryder on 03/10/2011

Reply from TartyBikes on 03/10/2011

Hi Lee - At 5'9", you should be the pretty much perfect height and size for the Ska. I'm a little over 6' and I used to ride 20" bikes with no problems at all, so I don't think you'd have an issue with it. It will naturally feel a little small due to the fact it's got 20" wheels and a very compact frame, but this is usually in a good way - by being nice and compact it makes the bike much more effective for trials moves, so overall I think it should work out well for you. Thanks, Mark


would this bike be a better starter trials bike than the onza zoot.

Posted by skyler on 10/11/2011

Reply from TartyBikes on 10/11/2011

Hello - Which would be best depends on the style of riding you're more interested in. For pure trials moves, the Ska would be easier to learn on than the Zoot as it's smaller, and has smaller wheels which help increase it's maneouvrability. However, if you'd like to do more BMX-style riding or do other tricks like footjam whips and so on as well as traditional trials moves the Zoot would be a better bike to go for as it's more suited to this style of riding. Thanks, Mark


Can an ISIS splined Bottom bracket be fitted to this bike ?

Posted by Bruce on 24/11/2011

Reply from TartyBikes on 25/11/2011

Hi Bruce - It would be possible to fit an ISIS BB to this bike, although you'd then also need to ugprade the cranks to an ISIS model too. Thanks, Mark


Hi can rear hydraulic discs be fitted to this bike? Thanks.

Posted by Bruce on 28/11/2011

Reply from TartyBikes on 29/11/2011

Hi Bruce - The Ska frame has no disc mount, so I'm afraid it'd be impossible to fit a rear disc. Sorry!

callum hay

hi im getting the onza ska for xmas and i was wonderind if it has hose mponts along the frame ?

Posted by callum hay on 13/12/2011

Reply from TartyBikes on 14/12/2011

Hi Callum - The Ska comes with cable guides suitable for use with V-Brakes, but not dedicated hydraulic hose guides. We do have stick-on hose guides in our Frame Spares section, so if you did want to fit a hydraulic brake on you'd be able to use those to get your hose routing right. Thanks, Mark


Hey, how much should i pump my wheels up to prevent them popping as much? Angus.

Posted by Angus on 16/12/2011

Reply from TartyBikes on 19/12/2011

Hi Angus - 30-35psi is a fairly 'normal' pressure to run to try and avoid getting pinch flats. If they're becoming a real problem, you can try and use something like the Kenda 19" DH tube (Quick find code: 010205) - these are a lot thicker so you should find you get fewer punctures. Thanks, Mark


Hi i just got this bike for christmas today and when i pull my brakes they just make a massive squeak for how long i pull them for! how can i stop the squeaking noises?

Posted by angus on 25/12/2011

Reply from TartyBikes on 28/12/2011

Hi Angus - This is unfortunately quite normal for trials brakes. As trials bikes use softer compound brake pads to try and get more braking performance, the side effect of this is that the brakes tend to be quite noisy. It's possible to use harder pads to get a quieter brake, but generally the brake performance will suffer. Thanks, Mark


whats the smallest possible rear sprocket? thanks skyler

Posted by skyler on 08/05/2012

Reply from TartyBikes on 08/05/2012

Hi Skyler - The smallest rear sprocket available for this bike is 12t, which it is fitted with as standard. Thanks, Mark

susan croly

is this bike light at the front and heavy at the back

Posted by susan croly on 24/09/2012

Reply from TartyBikes on 24/09/2012

Hi Susan - The weight distribution of this bike is fairly even throughout. By having things like the freewheel more towards the centre of the bike, the bike is nicely balanced. Thanks, Mark


hi can you fit some Avid BB5 G2CS (160mm) on for me??

Posted by UNKNOWN on 30/04/2013

Reply from TartyBikes on 01/05/2013

Hi Arran - The frame, fork and hubs on the Onza Ska are all non-disc, so it wouldn't be possible to fit any type of disc brake, sorry. Thanks, Mark


What type of brake booster fits this bike and which one should I use? Thanks

Posted by Daniel on 11/07/2013

Reply from TartyBikes on 11/07/2013

Hi Daniel - thanks for your question. Any V-Brake Booster with the right width spacing will fit this bike if you're using the V-Brakes that came with it. Unfortunately the only V-Brake booster we currently stock is too narrow for this bike, so you would have to look elsewhere. Thanks, Flipp.


RE Onza Ska. I would like to set the bike up for a smaller rider. Would it be possible / advisable to fit a shorter stem, if so what would you recommend (I'm trying to reduce the "stretch" distance to the bars)? Also, is it possible to reduce the bar width - say an 1" off each side? Finally, are the brake levers span adjustable? Any other advise on this would be helpful. Thanks in advance.

Posted by graham on 25/09/2013

Reply from TartyBikes on 25/09/2013

Hi Graham - thanks for your queries. The brake lever "reach" is the most easily solved: on the side of the lever body between the pivot and the barrel adjuster there is a small grub-screw. Screwing this in will cause the lever blade's resting position to be closer to the handlebar. As for cutting handlebars - this is entirely possible and not uncommon. Just be sure to smooth the edges off so it doesn't cut through the grips, or even potentially injure the rider. It's also a good idea to cut too little off so that you can cut a bit more, rather than accidentally cutting too much off and being stuck at that width or buying a new set. Finally, using a smaller stem is also absolutely fine. It is hard for us to advise on which you could use as we don't know how small the intended rider is. If you send us an email with a bit more detail we'll be better able to help you out there. Thanks, Flipp.


Can You ship to America?

Posted by Mason on 27/10/2013

Reply from TartyBikes on 28/10/2013

Hi Mason - we can and regularly do ship to America. All our postage information is available here: http://www.tartybikes.co.uk/pages/postage.html and if you would like to find out how much it will be, simply add the items you would like to your basket and go to the checkout. You can check through the order details without committing to purchase. Thanks, Flipp.

Noah Clark

Is this the only coluor it comes in

Posted by Noah Clark on 14/11/2013

Reply from TartyBikes on 14/11/2013

Hi Noah - thanks for your question. Yes, this is the only colour that these bikes are made in. Thanks, Flipp.

Noah Clark

Which bike do you think i should get. This is my first trials bike and i just want to play around with it.

Posted by Noah Clark on 14/11/2013

Reply from TartyBikes on 14/11/2013

Hi Noah - the Ska is a great choice for a first bike. A lot of people tend to go for the cheaper models as they are not sure they want to spend so much money on a bike, but if you have the money, it gets you quite a lot more bike. This model has a 19" rear wheel and four-bolt brake mounts, meaning as and when you want to upgrade your bike, most parts will fit straight on to the frame, rather than you being stuck with relatively little choice in 20" wheels or vee-brakes. That being said, the bikes are quite good to start with, so it would likely be quite a long time before you want/need to upgrade it anyway. Hope that helps. Thanks, Flipp.


i am 176cm high, is this a good bike for me?? :)

Posted by RubenRoed on 28/11/2013

Reply from TartyBikes on 29/11/2013

Hi Ruben - thanks for your question. You will be absolutely fine on a Ska at that height. Thanks, Flipp.

Guy lorraine

Hey i was wondering if u was to buy this trials bike how much is delivery and how long would it tKe ti arrive thanks guy

Posted by Guy lorraine on 09/02/2014

Reply from TartyBikes on 10/02/2014

Hi Guy - thanks for your question. To calculate your shipping costs, add your items to the basket and go to the checkout. Entering your address will let you see what postage options are available to you and their relative costs without committing you to the order. The postage itself is a next day service so will arrive with you the day after we send it. The time it takes us to send it out depends on our workshop schedule. It could leave the same day as you place the order if we do not have many bikes to set up, but it could be as long as 4-5 working days in particularly busy periods. Hope that helps. Thanks, Flipp.


Hello, can people who’re over 1.55 ride this bike?

Posted by Isaac on 07/06/2018

Reply from TartyBikes on 08/06/2018

Hi Isaac - We recommend the 'full size' Onza bikes like this for riders over 1.50m, so if you're 1.55m you should fit the bike well. Thanks, Mark


What PSI should I pump my back tire to as I dont' thing it says on the wheel

Posted by Alex on 19/05/2014

Reply from TartyBikes on 20/05/2014

Hi Alex - thanks for your question. Just go for whatever you find comfortable, or helps you ride the most. Some people run very soft tyres and some very hard. It's a matter of personal preference in how you want the bike to handle, though it's worth noting that running very soft tyres makes you a little more susceptible to pinch punctures. Hope that helps! Thanks, Flipp.


What would be the right height for this bike

Posted by Toby on 14/07/2014

Reply from TartyBikes on 15/07/2014

Hi Toby - anywhere from around 5' (150cm) upwards would be fine on this bike! Thanks, Flipp.


hey guys im sam, i have been inspired by danny macaskill and was looking to get into trials bike riding i was looking at the onza ska im am a total beginner i am around 5 ft a bit taller and need something to get started on

Posted by sam on 15/07/2014

Reply from TartyBikes on 16/07/2014

Hi Sam - thanks for your question. This would be a great bike for you to get started on. It is a great bike as it comes, but it also very easily upgradeable should you decide to do so in the future. Hope that helps. Thanks, Flipp.

Aj Fraser

Can u pedal backwards on this bike?

Posted by Aj Fraser on 11/08/2014

Reply from TartyBikes on 12/08/2014

Hi Aj - thanks for your question. Trials bikes use a freewheel or freehub mechanism, meaning that if you pedal backwards, you will not move backwards. If you are rolling backwards you will have to pedal backwards to allow the movement to continue, and if you are rolling forwards you can stop pedalling and continue moving forwards. Hope that helps. Thanks, Flipp.


What do you recommend onza bird or onza ska.

Posted by James on 28/08/2014

Reply from TartyBikes on 29/08/2014

Hi James - thanks for your question. The Bird offers a lot of bike for your money, but the Ska is more upgradeable if you think you are going to want to make changes in the future. The Ska features a 19" rear wheel, 4-bolt mounts for hydraulic brakes and a front freewheel system that are all improvements over the Bird, but is more expensive as a result. Hope that helps. Thanks, Flipp.


Hi, Can i fit a magura hs 11 on it and is this bike right size for me (i am 190) Thank you Anton

Posted by anton on 25/10/2014

Reply from TartyBikes on 27/10/2014

Hi Anton - thanks for your question. Yes, you can fit HS11 brakes to this bike though you would need to use 4-bolt brake clamps and remove the 4-bolt to v-brake adaptors. At that height you may find this bike a little small. Most people over 180cm tend to be more comfortable on a 26" bike. Hope that helps. Thanks, Flipp.


What kind of Brake level blade spare chould i replese it with?

Posted by Thomas on 11/11/2014

Reply from TartyBikes on 12/11/2014

Hi Thomas - thanks for your question. Unfortunately you cannot replace just the blade as it is fixed into the body, though any of the Cable Pull Levers we stock will work perfectly with this bike. Hope that helps. Thanks, Flipp.


hi i am 173-174cm high, is this a good bike for me (onza ska) do you ship to Finland and how long will it take? :)

Posted by oliver on 08/02/2015

Reply from TartyBikes on 09/02/2015

Hi Oliver - thanks for your question. Yes, this bike will fit you just fine, and yes we can ship to Finland with no problems! The shipping will take 2-4 days, but it may take an extra day or two to get through the queue of bikes in the workshop. How long the queue is changes quickly, so it will depend on when you place the order. Sometimes a bike can leave us the day after it is ordered. Hope that helps. Thanks, Flipp

william barents

I am about 6'3 and weigh about 210 lb. would I be able to ride this bike.

Posted by william barents on 20/03/2015

Reply from TartyBikes on 23/03/2015

Hi William - thanks for your question. At that height you might feel a little cramped on a 20" bike. You would likely be more comfortable on a 24" or 26" bike. Thanks, Flipp.


Hi i am wondering if the onza ska would be a good bike for me. I am about 5 foot 3 and i have looked into alot of bikes but they have a "requimended" hight and all that! (Sorry if everyone is asking you this) but i am wondering about this bike!!

Posted by Auzzi on 03/04/2015

Reply from TartyBikes on 07/04/2015

Hi Auzzi - thanks for your question. This bike would fit you just fine. At your height, any of the "full sized" 20" bikes would be about right for you, though if you feel they are a bit too big, simply rolling the handlebars backwards a little will help make it feel a touch smaller. Hope that helps! Thanks, Flipp.


Can this bike be shipped to India???

Posted by Tharun on 05/11/2015

Reply from TartyBikes on 06/11/2015

Hi Tharun - Shipping to India is no problem at all. If you'd like to check shipping prices, if you add the bike to your Basket then head to the Checkout our website will automatically calculate shipping prices for you (with no obligation to buy). Thanks, Mark

Tharun Shiv

Can we fit an gusset hollow star nut on the bike so that we can do footjam tailwhips ????? And can the bike take some hard jumps or drops??? Thank you Tharun Shiv

Posted by Tharun Shiv on 25/11/2015

Reply from TartyBikes on 26/11/2015

Hi Tharun - Fitting the Gusset Hollow Star Nut should be no problem on this bike. The Ska is pretty tough too so I don't think you'll have any issues with durability. Thanks, Mark

Tharun Shiv

Hello tartybikes I normally ride street trials and I tend to crash a lot and I wanted to know will this bike take all the crashing abuse and are the wheels strong enough for all the abuse??? Thank you, Tharun Shiv

Posted by Tharun Shiv on 26/11/2015

Reply from TartyBikes on 27/11/2015

Hello - The Onza bikes are built to be tough so they can take some knocks, including the wheelset. Thanks, Mark

Tharun Shiv

Hello tartybikes I just wanted to ask do get an owners manual with the bike ???

Posted by Tharun Shiv on 29/11/2015

Reply from TartyBikes on 30/11/2015

Hi Tharun - There is a brief manual from Onza themselves, and we also include some information about how to look after the bike as part of the warranty document supplied with the bike. If you receive a bike and have any questions we're always happy to help out, and we also have some video guides about setting up and looking after your bike in our Media section. Thanks, Mark

Tharun shiv

Hello tartybikes i wanted to know that do we need spaners to tighten the wheels or an allen key??? And if we need to use a spanner what will the size be??? Thank you , Tharun Shiv.

Posted by Tharun shiv on 11/12/2015

Reply from TartyBikes on 14/12/2015

Hi Tharun - You would need a 15mm spanner to tighten the wheel nuts on this bike. Thanks, Mark

Tharun shiv

Hello tartybikes if we grind the rims will it decrease the srength of the wheel and how many grinds can a wheel take??? Thank you , Tharun Shiv.

Posted by Tharun shiv on 17/12/2015

Reply from TartyBikes on 18/12/2015

Hi Tharun - Grinding your rim will technically weaken it as you are removing material, but in reality it doesn't make much of a difference at all. Most rims can usually take many grinds before their strength would decrease to the point that the sidewalls would be more likely to buckle/bend. Thanks, Mark

Tharun shiv

Hello tartybikes , which type of brake gives a better bite on an 20 inch bike a disk or an rim brake??? Thank you, Tharun Shiv.

Posted by Tharun shiv on 01/01/2016

Reply from TartyBikes on 04/01/2016

Hi Tharun - Rim brakes give better initial bite, but disc brakes offer much more hold and modulation. Thanks, Mark

Matt Bowers

Would I be able to buy this in a different colour

Posted by Matt Bowers on 19/02/2016

Reply from TartyBikes on 22/02/2016

Hi Matt - Unfortunately not, sorry. The Ska is only available in the colour shown. Thanks, Mark


what is the chain size?

Posted by callan on 26/12/2016

Reply from TartyBikes on 28/12/2016

Hi Callan - This bike is fitted with a 1/8" width chain. The drivetrain is compatible with both 3/32" and 1/8" chains. Thanks, Mark


Which parts would I need to replace the brakes on this bike with the HS33 Hydraulic Rim brakes? Thanks!

Posted by Isaac on 09/06/2018

Reply from TartyBikes on 11/06/2018

Hi Isaac - You would need the HS33 brakes themselves, and two sets of Magura 4-Bolt Rim Brake Clamps. Then the brakes would simply bolt on! Thanks, Mark


Do you get a chain stay when ordering this bike and about how often do you have to change break pads?

Posted by Marcus on 25/09/2017

Reply from TartyBikes on 26/09/2017

Hi Marcus - Chainstay protectors are offered as a free item at the checkout, so just make sure you add one to your basket while you're in the checkout process! The brake pads tend to be very durable, so you shouldn't need to change them very often (they will last for several months, typically). Thanks, Mark


How much harder is it to start of and learn the basics on a 24" bike like the ONZA zoot compared to a 20" bike like the ONZA ska, or is it about the same difficulty?

Posted by Gunner on 26/09/2017

Reply from TartyBikes on 26/09/2017

Hi Gunner - The Zoot will be a little harder than the Ska as the 20" wheels tend to make it a little easier to get the basic trials moves dialed. However, the Ska will be more limited if you want to learn more street-orientated trials moves. There's a compromise between each in terms of whether you want to go more for competition-style trials or street-style trials - if you want to do more of the first type then the Ska would be best, but if you want to do more of the second type the Zoot would be best. Thanks, Mark


Is the size of the rear drop outs 110mm x 14mm?

Posted by Liam on 02/10/2017

Reply from TartyBikes on 03/10/2017

Hi - It's 110 x 10mm. Thanks!


Will this bike still be available for purchase in the summer of 2018?

Posted by Marcus on 19/10/2017

Reply from TartyBikes on 20/10/2017

Hi Marcus - Unfortunately we don't know what Onza's plans are for their future range so we couldn't say for definite, sorry! Thanks, Mark


Hey there! I would like to buy the model ''Onza ska''... How much (euros) will it cost???

Posted by Aggelos on 25/10/2017

Reply from TartyBikes on 25/10/2017

Hi Aggelos - Due to currency rates changing every day, your best bet to get an up-to-date price is to use a currency converter to check. We recommend just typing the price of the bike into Google followed by "in €" as Google will automatically convert it for you. To check the overall price, add the bike to your basket, then click 'View Basket'. Our website will work out shipping options for you and their associated prices, and once you have these you can try and work out the grand total. You can then enter that total into Google as mentioned previously and it'll convert it to a price in Euros for you. Thanks, Mark


I am about 6 feet 2 inches tall and close to 190 pounds will this bike work for me?

Posted by luke on 05/03/2018

Reply from TartyBikes on 06/03/2018

Hi Luke - As with the Tyke, this bike is possibly a touch on the small side for you but again using a longer stem such as the 180mm Trialtech Race Forged or Jitsie Forged stems would help get it working better. The Ska is a little larger than the Tyke, and has some nice upgrades (including upgraded brakes, wheelset, 19" rear tyre, crankset and more), so would be more suitable for your height and weight but either bike should do the trick. Thanks, Mark


can you fit a free wheel drive on the rear wheel?

Posted by Brian on 29/06/2018

Reply from TartyBikes on 02/07/2018

Hi Brian - The Ska uses a normal, screw-on rear hub so fitting a freewheel to the rear hub would be no problem. The only issue might come in getting a large enough sprocket/chain ring on the crank arm to keep the correct gear ratio. Thanks, Mark

Leo Spencer

heyy i would just like to no if i would be better off buying this bike or the onza rip with hs33 brakes? thanks

Posted by Leo Spencer on 06/06/2011

Reply from TartyBikes on 06/06/2011

Hi - In our opinion you would be better off with the Ska, as it has a rear 19" wheel and front freewheel as standard. The V Brakes are actually very powerful with the upgraded pads. Thanks, Adam

Liam Wilson

What kind of pedals are they.

Posted by Liam Wilson on 17/08/2011

Reply from TartyBikes on 18/08/2011

Onza caged pedals, as shown on the photos. Thanks, Adam

curtis james

with the onza ska, is there any possibility you can get a seat for the bike, as its going to be my second trials bike, the last one had a seat, and im wondering is it going to be a huge difference riding with no seat?? thanks curtis....

Posted by curtis james on 07/10/2011

Reply from TartyBikes on 07/10/2011

Hi Curtis - Unfortunately there's no way of mounting a seat to the Ska. For normal trials riding, having a seat-less frame is a plus - as the frame is more compact, it means you can manoeuvre the bike around more easily and 'tuck' the bike up more when you hop. It will feel a little unusual at first, but once you're used to it it'll be a positive change. Thanks, Mark

Aaron Ward

Hi, I was just wondering if the Onza ska's freewheel or Freewheels make the clicking noise when you ride it ?

Posted by Aaron Ward on 28/11/2011

Reply from TartyBikes on 29/11/2011

Hi Aaron - Because of how the freewheel works, it makes a clicking noise. They have a little grease in to begin with so aren't that loud, but once they're bedded in they get a little more noise. Thanks, Mark

Aaron Ward

Hi, when you get the Onza ska, Could you put the remaining parts on the bike with the TratyBikes Multi-Tool ?

Posted by Aaron Ward on 01/12/2011

Reply from TartyBikes on 01/12/2011

Hi Aaron - The only other tool you would need would be a 15mm spanner to tighten the pedals on. Thanks, Mark

Aaron Ward

Which is better on the rear Freewheel an 18T or 12T ?

Posted by Aaron Ward on 03/12/2011

Reply from TartyBikes on 05/12/2011

Hi Aaron - It's not possible to get a 12t freewheel - the most common setup for 20" bikes is an 18t freewheel mounted on the cranks, and a 12t fixed sprocket on the rear hub. This is the most compact, lightest setup available, which is why it's used on the majority of 20" bikes. Thanks, Mark

Calum Grant

Hey guys I got the 2012 ska and just bent the bars what can you suggest? Cheers

Posted by Calum Grant on 26/06/2013

Reply from TartyBikes on 27/06/2013

Hi Calum - thanks for your question. How old is this bike? Unfortunately, the only thing for it is to get some new bars. They are not really a component you can "mend". Bending them back will weaken them, and it would also be incredibly difficult to return them to just the right position. Thanks, Flipp.

brian dorant

Does this bike have sealed rear hubs for 2013?

Posted by brian dorant on 19/06/2013

Reply from TartyBikes on 20/06/2013

Hi Brian, This bike features open hub bearings. Thanks, Flipp.

ben brown

can you put a maxxis creepy crawler 2.5 rear on this

Posted by ben brown on 12/08/2012

Reply from TartyBikes on 13/08/2012

Hi Ben - A Creepy Crawler 2.5" tyre would fit fine on this bike. Thanks, Mark

Brandon Barefield

Why does this bike (a 20") weigh as much as the Onza Zoot (a 24")? It seems to me like this should be lighter, but maybe I'm missing something.

Posted by Brandon Barefield on 23/07/2013

Reply from TartyBikes on 24/07/2013

Hi Brandon - thanks for your question. It's just the way it goes, unfortunately. One of the easiest ways to bump weight up is in the tyres. The Tyres on this bike are relatively heavy, whereas the Zoot's are reasonably light. The frame also uses slightly thicker gauge tubing for strength, but at the cost of being heavier. Hope that helps. Thanks, Flipp.

Elek Laslau

Hi! I live in Norway and my question is; how much does it cost to send it to the Oslo- area(Norway)?

Posted by Elek Laslau on 10/09/2013

Reply from TartyBikes on 11/09/2013

Hi Elek - if you add the items you want to order to your basket and go to the checkout, you can calculate postage costs without committing to placing the order. Thanks, Flipp.

Marius Skau Göthe

Does this bike fit to me, I am 1.6m?.I want to start with trails(beginner) . the brakes on this bike are they hard to push?

Posted by Marius Skau Göthe on 15/05/2014

Reply from TartyBikes on 16/05/2014

Hi Marius - thanks for your question. This bike would fit you perfectly, and the brakes are very easy to pull. We spend time making sure the bike is set up perfectly before sending it out, so the brakes are very powerful, and feel very "light" at the lever. I hope this helps. Thanks, Flipp.

Danny Skilton

is it possible to fit a gyro (detangler) system on this bike?

Posted by Danny Skilton on 03/01/2015

Reply from TartyBikes on 05/01/2015

Hi Danny - thanks for your question. You would be able to fit one of the style that is several plates that sit below the stem (like this one: http://www.odysseybmx.com/dailyword/archivesV2/1985/01/gyro-g3.jpg) but you could not fit the more modern BMX style that affixes by bolting two tabs to the side of the headtube (like this one: http://cdn.bmx-forum.com/4/49/600x450px-49545229_gryoon2.jpeg). Hope that helps. Thanks, Flipp.

Murray Allan

what's the difference between this bike and the onza rip? also I have never ridden a trial bike and am 5"9 so which bike should I get, the rip or the ska?

Posted by Murray Allan on 17/08/2015

Reply from TartyBikes on 18/08/2015

Hi Murray - thanks for your question. The two bikes will feel quite similar as most of the difference lies in upgradability. The 19" rear wheel of the Ska has more trials-specific tyres available to it than the 20" of the Rip, and whilst they both use vee brakes, the Rip frame/fork only has vee brake mounts, where the Ska has 4-bolt mounts and then uses vee brake adaptors. This means it is easier to mount hydraulic rim brakes in the future if you decide to. The drivetrain is all of a higher quality, and the freewheel is mounted to the crank rather than the wheel. This improves ground clearance and evens out the weight distribution a little more. There are many small differences like this that a beginner may not notice the difference between and both are suitable for your height, so it's more down to your budget, and if you view the future-proofing as being worth the money or not! Hope that helps. Thanks, Flipp.


Write a review


Based on 6 customer ratings


Great bike

Posted by Kevin on 27/06/2011

Well when i bought the Ska I didn't really know what to expect, since its my first ever purpose built trials bike, but I'm loving it! Even tho I prefer street over trials it still does a great job as a street bike, If you're coming from a 26" background, like me, you will probably feel a lot more strain on your wrists, but that will pass. I ordered it on a Monday and it arrived the next Tuesday, and since I live in Sweden, i think that is quite remarkable. So in the words of Forest Gump: "and thats all i have to say about that." Bye. Kevin Fordal

Reply from TartyBikes on 27/06/2011

Hi Kevin - Thank you for your review, enjoy the bike! Many thanks, Adam



Posted by lisa on 02/09/2011

This bike is great, affordable and fun.

Reply from TartyBikes on 02/09/2011

Hi Lisa - Glad you enjoy the bike, thanks for the review!



Posted by David on 09/09/2011

this is my first trials bike and it was very humbling at first but as skills improve its is alot of fun. I cant wait to get another one! Thank you guys!

Reply from TartyBikes on 12/09/2011

Hi David - I'm glad to hear you're enjoying the bike. As you've found trials can be quite hard at times, but it's definitely worth sticking with! Thanks for the review, and I hope you continue to enjoy yourself. Thanks, Mark


Great bike

Posted by Jane on 08/06/2012

Great bike, nice and light, am finding it a great bike to through around. I'm getting used to this bike quick. Really recommend to any beginner or for an upgrade as a second bike, thanks to everyone at tarty bikes for the great service and postage

Reply from TartyBikes on 11/06/2012

Hello - It's good to hear you're getting on well with your new bike! I hope you have a great time riding it. Thanks for the review!



Posted by Sergio on 07/02/2014

First of all I have to say that customer service is just fantastic. First buy at Tartybikes, but i had questions and concerns. They were all solved inmediately by the staff and made me feel like the closest of friends. Paid on monday and the bike arrived next thursday on my doorstep. (customs cleared). Wow all the way to Guatemala, impressive. Much easier, faster and cheaper than buying from my northern neighbors. Still have to ride the bike a little bit more but definitely its a bang for the buck, great performance overall (in par with bikes double its price) and great potential. Looks better in person.

Reply from TartyBikes on 07/02/2014

Hi Sergio - thanks for such a positive review! We try very hard to provide the best service possible, and it sounds as if we get it right at least some of the time! We hope you enjoy the bike, and are always here to help out if you have any issues with it. Thanks, Flipp.


Great beginner bike

Posted by Alexander on 05/08/2017

I wasn't sure whether trials is something I would enjoy so I didn't want to spend too much on a bike. Since neither used bikes nor any trials riders are in my area I bought this. Now after 1 month I still feel like this bike is highly capable and all components are strong and well crafted. The brakes tend to squeek a lot but only while slowing down. When you lock a wheel they don't make any noise. The only thing I changed are the pedals because I'm much more used to flat pedals opposed to the cagepedals which were installed. In the near future I will change the grips as well but this is (just like pedalchoice) up to personal preference. Overall this bike has probably the highest quality compared to its price out of all my bikes.

Reply from TartyBikes on 07/08/2017

Hi Alexander - Thanks very much for your detailed review. It's great to hear you're getting on well with your new bike! I hope you continue to enjoy riding it.

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  • © TartyBikes Ltd, 2018
  • Tel. (UK). 01772 32 33 33
  • Tel. (Intl). 0044 1772 32 33 33

TartyBikes Ltd, Units 3-4, Club Street, Bamber Bridge, Preston, PR5 6FN

  • Company No. 6131482
  • VAT. GB 860 0270 59

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