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Echo Urban 4-Bolt

Product code: 10604


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Echo Urban 4-Bolt


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- Classic Echo shape provides excellent mechanical properties.
- For use with dedicated M5 thread 4-Bolt Magura mounts.
- Machined pockets and drilled holes to reduce weight.
- CNC machined from high quality plate aluminium.
- Wide profile to protect cross-over pipes on HS33 brakes (136mm at it's widest point).
- 95-102mm spacing (centre-to-centre of bolt holes).
- 50mm vertical clearance from the underside of the arch to the top bolts.
- Stylish laser etched 'Echo' graphics.
- Available in 6 anodised colours, may come with raw aluminium pockets or anodised dependant on stock.
- Please note that boosters may come with gold, silver or rainbow finish bolts, and the purple colour is quite a light shade
- Includes full bolt and aluminium spacer kit. Bolts are 40mm long to work with Echo clamps, so you may need to trim the spacers down or use longer bolts if you have deeper brake clamps.
- Weight: 81g (including bolts and spacers).

Additional Information

To ensure this booster will fit, measure the 4-bolt mount spacing of your frame before ordering, and check this falls within the value listed in the description. Have a look at the additional picture for details of how to do this.



Hi, I'm looking for just the bolts and spaces because i lost my bolts and spacers. Do you know where I can get some? Thanks

Posted by james on 05/04/2011

Reply from TartyBikes on 06/04/2011

Hi James - You'd need to buy 4 M5x45 bolts (either steel or titanium), and then 4 booster spacers. Thanks, Mark


Hi, is this only suitable for 20" bikes or do you have any in stock for 26" bikes cheers Sam

Posted by Sam on 21/10/2012

Reply from TartyBikes on 22/10/2012

Hi Sam - This is suitable for 26" bikes too! They used to be sold as a 26" or 20" option with the only difference being the 20" model gave better tyre clearance. However, Echo simplified their range to just offer the 20" model which is compatible with all wheel sizes. Thanks, Mark

tom bleach

Will this fit a 20" x 2.5" rear tyre?

Posted by tom bleach on 23/08/2013

Reply from TartyBikes on 27/08/2013

Hi Tom - this will fit over that size tyre with no problems. Thanks, Flipp.


Will this fit a Onza Comp 2013 with maguru hs33 2005 model? :)

Posted by Joacim on 25/05/2015

Reply from TartyBikes on 26/05/2015

Hi Joacim - thanks for your question. This would fit that bike and brake perfectly. Thanks, Flipp.


Good morning, Could you please advise if this booster will offer some help with stiffening my Onza Zoot 24' frame? As it has v-brake mounts, the booster + adapter the magura HS33 brake comes with is not strong enough, therefore whenever I press the brake lever, I can see the frame bending due to the hydraulic pressure within the brakes. If I will replace the magura booster (stock booster for 2b) with one of these 4B ones, would you assume that it will offer more stiffening, or given the fact that is a V-Brake frame there is nothing I can do about it? Kind Regards, Daniel.

Posted by Daniel on 11/07/2016

Reply from TartyBikes on 11/07/2016

Hi Daniel - Unfortunately, a 4-bolt booster won't work with that setup, but one way of improving the brake would be to bolt the Trialtech Sport 2-Bolt booster directly to the Evo2 Adaptor clamps using the top 2 bolts. This will help improve brake feel quite a lot, although you should still expect a little flex just due to how powerful those brakes are, and how relatively thin the seat stays are on the Zoot. Thanks, Mark

Craig blight

Will this fit the 06-07 onza t-pro as getting alot of frame flex .

Posted by Craig blight on 01/06/2017

Reply from TartyBikes on 01/06/2017

Hi Craig - It would be worth double checking the spacing on your frame (as shown in the additional images) to check compatibility as although I'm fairly confident they'll fit I'm not absolutely certain! We're currently out of stock of the Urban boosters until mid-July, so for an alternative either the Trialtech Sport 2-Bolt or 4-Bolt boosters would be a good choice. The 2-Bolt booster should still make a big difference to your frame flex, but will make set-up a little less fiddly. The 4-Bolt is the way to go if you want to stiffen your bike as much as possible though. Thanks, Mark


What modifications will i need to undertake If im to use this brake booster with standard magura brake clamps ?

Posted by dave on 20/05/2018

Reply from TartyBikes on 21/05/2018

Hi Dave - If you've got the standard Magura 4-Bolt Clamps, you may need to remove a little material from the booster spacers. The Echo clamps (which the bolt length supplied is specced for) are relatively slim, so you'd just need to check the thread contact in your frame with your setup. If you're only getting a couple of threads, filing or grinding down the spacers to get a bit more contact within the frame would be advisable just to reduce the chances of the threads stripping. Alternatively you could use some slightly longer M5 bolts - 45mm should do the trick. Thanks, Mark


Write a review


Based on 3 customer ratings


Does its job!

Posted by Raymond on 01/10/2011

Easy to install and it really does its job! Its about 1/2" space between the top of the wheel on my 24" bike. Its a great product, and i recommend it if you want a good, reliable brake booster.

Reply from TartyBikes on 03/10/2011

Hi Raymond - I'm glad you like the booster! Thanks for the review.


Very Light

Posted by William on 06/01/2012

I can't believe how strong and light this thing is, it looks nice and does the job well.

Reply from TartyBikes on 09/01/2012

Hi William - I'm glad you like the booster. Thanks for the review!



Posted by ant on 24/05/2012

Strong, light, stiff and pretty bling lol, does the job nice and the bolts are sweet.

Reply from TartyBikes on 24/05/2012

Hi Ant - A nice booster like the Urban can really help finish the look of your bike off, plus improve your braking! Thanks for the review.

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