$ 827.00
Thumb Paddle
Brembo Master Cylinder

Are you looking for a reliable thumb brake for your bike? Look no further than the Racetorx thumb brake! This kit has been used in some of the most prestigious racing competitions in the world, such as British Superbike (BSB) series, Nolimits Endurance, Ducati Tri-Options Series, World Endurance, Isle of Man TT and Northwest 200, so you know it's a high quality product. With this kit you can be sure to get all the parts you need in one place, saving you the hassle of ordering them separately. Don't wait, Get your Racetorx thumb brake kit now and take your riding experience to the next level and enjoy the confidence that comes with reliable braking power!

 Bike Fitment-

The Racetorx thumb brake is a  versatile solution for all sorts of motorcycles, from road bikes and race bikes to adventure and motocross bikes. Our fully adjustable thumb brake provides a wide range of adjustment possibilities, however, it is worth noting that depending on the bike, fairings, tanks or frames may be slightly obstructed. On motorcycles with handle bars, fitting clearance is much easier than on those with OEM clip-ons.

Ducati owners- fitment to the Ducati V4 Penagale is a particularly tricky clearence fitment and necessitating some modifications to the fairing and to clarify this is the case on any thumb brake. On the other hand, the Ducati V2 Penagale provides more clearance, but even then the frame is still obstructed at full lock. Thankfully, adventure, motocross and streetfighter bikes all have plenty of clearance. Finally, the latest BSB Thumb Paddles are now available due to collaboration with the team's Moto Rapido & FS3.

This kit supplied will mount in conjunction to your rear foot pedal. The junction valve in the kit will replace the reservoir on your foot master cylinder. 

Our kits have been fitted to all variations of motorcycles now and is a universal kit to ALL motorcycles. For any questions of junction valve fitments please send us an email to sales@racetorx.co.uk with an image of your rear foot master cylinder so we can clarify the SKU you require.

List of fitment, (Please still check the image matches the master on your bike)-

  • RTX450JV - Commonly used on (Aprilia V4/RSV4 & RS660, KTM motocross bikes and more)
  • RTX452JV - Commonly used on (Honda CBR models and more)
  • RTX477JV - Commonly used on (Kawasaki ZX10 and more)
  • RTX479JV - Commonly used on (Aprilia RSV/Tuono, All Ducati's, All Superduke models, KTM SMCR and more)
  • RTX506JV - Commonly used on (All Yamaha WR & YZ models and more)

Please contact us for any fitment questions.

  • 11mm Master cylinder for single cylinder 125cc-500cc motorcycles (supermoto, motocross, trails & road)
  • 13mm Master cylinder for 2, 3 & 4 cylinder 500cc - 1400cc motorcycles (Road, track, superbike and adventure)

Related Products

Scroll To Top