Based on the famous Wormburner frame but with some more user friendly additions it’s 2 inches shorter in the back end to combat chain slap and gives an awesome mean stance and has an extra 3" ground clearance. 



  • Jig built in our fully equipped workshop
  • CNC machined headstock bearing cups
  • 15mm thick laser cut axle mounts with 20mm axle slots
  • In house CAD designed Gusset plates and engine mount kit laser cut with 6mm steel
  • Rake - 32 degrees
  • Between axle plates – 280mm
  • Backbone length - 560mm
  • Ride height – 7” - suitable for standard exhaust headers running underneath the engine.
  • Frame – 1”1/4 & 1”1/2, 12swg, seamless cold drawn precision steel tube, MIG welded
  • Headstock – Most yokes will fit, please enquire


Engine mounts can be welded in position as standard for Suzuki Bandit 600/1200 and GSXR engines for an additional £175, just add this option onto your order at checkout. Any other engine can also be used but will come with an extra charge.

Our frames are designed to use oil cooled GSXR or Bandit running gear, most designs can be modified to suit other donor bikes at an additional cost. Please enquire for more information.


Bearings, spacers, rear wheel spindle and our own battery and electric boxes can also be supplied at an extra charge, just send us an email or complete the enquiry form.


Time frames can be from 3-14 days depending on how booked up we are but we will be in touch to let you know once your order is received.

*Please note that the frame pictured is of one that with the engine mounts welded in position, your frame will not arrive with this done unless ordered*

If you wish to purchase outside the UK please contact us directly due to differing shipping charges and changes in exporting.


If you have any other queries please don't hesitate to contact us and we will endeavour to get back to you as soon as we can. 



Knickerdropper Frame