Focus RS / ST Roll Restrictor - Fully Fitted at mountune HQ


The mountune Focus Roll Restrictor reduces the amount of engine roll / movement during hard acceleration and changing gear, plus helps reduce 'wheel-hop', particularly when the power output has been increased.

With a product such as this, care must be taken with the design and choice of materials, as a poor design can destroy the feel and driving experience of the car.

With an extensive background working in the OEM market, mountune have the knowledge and engineering expertise to create a product which can reduce the engine movement by the desired amount, but with minimal effect to the NVH (Noise Vibration Harshness) level.

The mountune Focus roll restrictor is machined from high quality HE30 aluminium, and features a unique size and shore hardness polyurethane bush.

The bonus of using polyurethane is that not only has it been engineered to give increased stiffness without causing excessive vibrations, it also doesn’t deteriorate like rubber does, so the service life of the component is greatly increased.

Kit features:

  • Engineered and optimised for mk3 Focus RS
  • High quality HE30 anodised billet aluminum body
  • Bespoke size and shore hardness polyurethane bushes
  • Reduction in engine movement
  • Minimal effect on NVH

Please note: the price shown for this product includes installation at mountune HQ in Hutton, Essex and is not transferrable to any other Ford dealer or installer.

Please specify your preferred installation date in the 'notes' section when checking-out; our workshop team will then contact you back to confirm this date. If we can't accommodate your preferred choice, the team will discuss with you other available dates, that are still acceptable to you.

Customer Reviews

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Paul H

Roll restrictor

Since this has been fitted the drive definitely feels different for the good. I haven’t noticed this vibration most people have reported car just feels so much better when accelerating and going through the gears. The front just feels tighter if that makes sense.. Thanks to Ryan Fred and the Mountune team for a first class service as usual I wouldn’t go anywhere else.!! The attention to detail from these guys is second to none even down to putting my locking wheel nuts back in the same position every time I visit and that to me is just fantastic..!!! It showed that they think of the customer and they care.

Stephen mills

Roll restrictor

Add this fitted to my car same time I'm I was having a service done I've got to say it makes so much difference in the car and there's no wheel hop anymore feels like you're driving a completely different car if have not had this done i would highly recommend it and you will not regret it . some people have complained about vibrations for the wheel but I have not noticed anything at all big thank you to Ryan and mountune team


Stop your whhel hop

I had this fitted at the same time as the MR275 and Billet Short-Shift Arm. The result was excellent and it completely killed the wheel hop issue with the Focus ST. It has other benefits with changing gears etc but the fact it stopped the wheel hop completely was a fantastic result for me. I have read people complain about the extra vibration but it's minimal and most people complaining fitted it themselves and I think they might not have done it 100% correctly. It does have a pulse that vibrates through the pedals and steering wheel which I don't mind. You will only get this when sat idle (i.e. at traffic lights) and it can be stopped by either letting the stop/start stop the engine or just feather the accelerator up to 900-1000 revs while sitting idle, though as I said it doesn't bother me at all.

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