Slipper clutch,not lock-up. Although if launched hard,the K5 will try and snatch the clutch lever outta your hand similar to a lock-up. Two simple solutions for drag racing purposes: weld the slipper mechanism or buy a Brocks clutch-mod. Both accomplish the same.The stock gsxr1000 05-06 has a lock up clutch, a ramp in the clutch assembly that tries to apply clutch pack tight very quickly.
I had an 06, it was a mother to get any slip off the line.
They make an aftermarket assembly that takes away the ramping mechanism.
Look at APE racing, I believe you can get more information there.
Its part number 16 from the list it's a ramping cam.
Todd quoted d3coy and was not referencing your replyWas that in reference to what I posted?
APE knows a few things about racing.
If you're running crazy horse power, you're probably not using stock clutch to start with. :cheers