Ok.. I've fitted and tested my IRK now. I can definitely say if you're interestd in stuffing round with your timing.
Go the IRK it had more than enough adjustment and it gave the additional performance benefits of throttle response and rev range for a motard as well. The other bonus is that...
Hey James.. Just fitted a Mojo IRK that I got from Danny PRB which is also a kitaco clone it does have about 5mm advance and retard adjustment from centre. (I've tried to do the mod before on a standard flywheel before using the dremmel and you really couldnt advance it anywhere near enough)...
