Triumph Bonneville GSX-R Triple Tree Conversion

$846.97 USD

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Please select all options.

Offset: 35mm (17" wheel)
Top Clamp: No Gauge Mounts

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GSX-R fork on Triumph Bonneville  Conversion Triple Tree kit. Kit comes in 2 options. We offer 55mm offset for stock 18" wheel sizes and 35mm for 17" wheels. 

Cognito Moto Design Triple Tree Conversion. This Triple Tree allows you to bolt on GSX-R forks and retain OEM offsets or 35mm offset to accomodate rim size changes. Kit includes a frame specific stem to fit your Bonnie. We have used a 30/30mm stem diameter as found on the GSX-R for added strength in conjunction with All Ball Taper Roller Bearings. Adjustable steer stops save a lot of headache and allows the use of stock steer stop on OEM frame.

We offer with 4 top clamp options. 

  • Top Clamp with mounting of original Triumph Guage.
  • Top Clamp bare for a clean look and clip-ons. 
  • Integrated Motoscope Mini and indicator lights. 
  • Top Clamp plus riser clamps in 7/8 or 1". 
Compatible with the following donor fork tubes: 
  • 2000-2021 GSX-R600 / GSX-R750
  • 2000-2021 GSX-R1000


  • 2001-2021 Triumph Bonneville


  • Black anodized finish.
  • Upper Triple Clamp.
  • Lower Triple Clamp.
  • Fixed offset selection of 55mm (stock 18" rim) or 35mm (17' rim).
  • Custom Conversion Stem custom made to fit your Thruxton Frame.
  • Retro Aluminum top nut.
  • Adjustable steer stops.
  • All Balls Taper Conversion bearings.
  • ***Please note that these are custom made to order and take 1-2 weeks.***

 2011+ Triumphs require  M-TRI Once the original instrument is disconnected, the built-in CAN bus of these models instantly became inoperative. No mods are possible with the M-TRI.