All you have to do is call MTC and they sell the shims in all different sizes if thats what your looking for....Also, ZX-SIK-r where did you get the Vesrah Clutch springs at and what is the part number if you can recall. Im about to do a Clutch Spring Pressure Test with the Stock Clutch Springs, Barnetts, Orient Express, Vesrah, EBC and DP Brakes Clutch Springs to see which ones have the most spring pressure. Just trying to help us ZX-10R guys out since our aftermarket isn't as strong as the Gixxers 1000's. My mechanic has two badd ass Spring Testing machines that we are going to find out which ones are the best and which ones have the most consistent spring pressure within a complete set of springs....Please advise !!! I will post my findings under this thread after the testing has been completed...Results will be about another three to four weeks as to im getting ready for the AMA World Finals in Valdosta Georgia.