15.8 oz Clutch Weight for 2017-20 500 / 501 EXC / FE
This MUST be used with the BIG OILY Clutch Cover. The 15.8 ounce Clutch Weight, after a good amount of testing and feedback from various riders, seems to be the one to use for the 450 motocross bikes and 500/501's. This has to be used with the big oily Clutch Cover to fit and only fits on the stock DDS style clucth. Far less stalling and flameouts, with better traction control is the result. 16 oz ws as far as you could go without some small loss of acceleration, so 15.8 is the one. Use the 6 bolts supplied with it.