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Alias 20.1 Custom Build

Product code: 13416

From £949.17 to £1165.83

On order

Alias 20.1 Custom Build

Hope Brakes - As shown
Magura MT2 Brakes

Sold out

Dispatch time 3-5 days - this bike is fully assembled in our workshop before dispatch. Minor assembly required on arrival, details supplied with bike.

  • Agile, nimble geometry.
  • Tough, durable build.
  • Hope Tech 3 Brakes!
- Specced by us here at TartyBikes, the Alias 20.1 Custom Build!
- Tough yet lightweight parts kit is assembled around the super agile Alias 20.1 frame.
- Trialtech build kit includes their latest components such as the Sport Lite Splined crankset.
- 20" wheels front and rear for a more street-influenced style.

Frame and Forks
- Frame: Alias 20.1
- Forks: Echo Urban, Disc Only

- Front Hub: Trialtech Sport HD
- Rear Hub: Jitsie 116Disc, 116mm
- Front Rim: Alias 20.1
- Rear Rim: Alias 20.1
- Spokes: Mutiny Plain Gauge, Black
- Nipples: Mutiny Brass, Black
- Front Rim Tape: TartyBikes
- Rear Rim Tape: TartyBikes
- Inner Tubes: Maxxis Unboxed 20"
- Front Tyre: Fly Rampera, 20 x 2.35"
- Rear Tyre: Fly Rampera, 20 x 2.35"

Brakes - as pictured
- Front Brake: Hope Trial Zone
- Rear Brake: Hope Trial Zone
- Rotors: Hope Trial Zone V2, 160mm

- Cranks: Trialtech Sport Lite Splined
- Freewheel: Trialtech Sport Lite Splined, 18t, 108 click
- Chain: Trialtech Z610 HX
- Chain Tensioner: Trialtech Sport Snail Cams
- Rear Sprocket: Echo TR Screw On, 12t
- Pedals: Trialtech Race Platform
- Bottom Bracket: First ISIS
- Bashring: Trialtech Sport Lite Splined

- Handlebar: Jitsie 110mm Alloy Riser
- Stem: Trialtech Race Forged, 180mm x 35
- Headset: Alias 20.1 Integrated
- Headset Spacers: Alloy, 2 x 10mm, 1 x 5mm
- Grips: Jitsie Foam

- Wheelbase: 945mm
- Chainstay: 336mm (using 18:12 gear ratio)
- BB Height: + 65mm
- Head Angle: 73˚
- Centre of BB to top centre of head tube: 590mm

- 9.58kg including pedals, with Hope brakes

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.



How would this compare in feel to an early 2000s monty x lite 221 mod 20? I picked up an inspired Skye 24 and Im really not getting into the 24 bikes versus my old mod bikes.

Posted by Scott

Reply from TartyBikes

Hi Scott!
This bike will certainly feel more like your Monty compared to the Skye, although the shorter chainstay length and slightly higher BB will make it feel a little more agile than your Monty will have done.
We find that riders tend to get on better with bikes with a familiar wheel size to them, and if you're used to an older style of mod like the X-Lite the Alias won't be too dissimilar.
If you have any more questions, feel free to ask.

Joona Ollila

Is there enough cleareance in the rear triangle to fit a wider tyre? Cheers

Posted by Joona Ollila

Reply from TartyBikes

Hi Joona - We've done a more trials-orientated version of this bike with a 19" rear tyre that was 2.5" wide, so you can fit a fairly wide trials tyre in there if you wanted to. Thanks, Mark


Hi there, What spacer configuration are you using on the rear hub for this build? I have the same hub in an Alias with the snail cams on the inside too. The Jitsie hub comes with 2 thick and 2 thin axle spacers and I was wondering what the best combo would be as I am currently running a thin on the drive and a thick on the disc sides. Cheers, Joe

Posted by Joe

Reply from TartyBikes

Hi Joe - The Jitsie hub typically uses the thin spacers on each side when you're using snail cams, or the thick ones if you aren't. The only real difference it makes is how well the disc rotor on your hub will line up - if you're having issues then it would suggest something is off! Alternatively, you can measure the width of your hub, spacers and snail cams and make sure it's 116mm. Thanks, Mark


Hi, is it available in black color (or going to)?

Posted by Lyn

Reply from TartyBikes

Hi Lyn - This frame is only available in the colour shown. We don't know what future plans Alias have for colour options, sorry! Thanks, Mark

Vinh Cimiotti

Hi, would it change the Price if we change some parts like breaks , stem or something like these ?

Posted by Vinh Cimiotti

Reply from TartyBikes

Hi Vinh - Tweaking the spec would alter the price, for example the Hope brakes are relatively expensive compared to, say, the Magura MT2 or MT4s, so the price would drop as a result. If you've got any specific changes or requests in mind feel free to e-mail us at tartybikes@gmail.com and we'll do our best to help out. Thanks, Mark


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  • © TartyBikes Ltd, 2019
  • 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

All prices listed are inclusive of sales tax at the correct rate for your country

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