The stock clutch in my 2000 M900Sie, which has a dry clutch, was pretty beat. I bought a Procutting Hard Anodized Clutch Basket/Plate Combo from http://www.desmotimes.com/, which is 7075 grade aluminum, with aluminum Barnett friction plates. The set is nearly three pounds lighter than the stock steel clutch. I also bought this clutch holding tool and replacement bearing from Desmo Times. That's a 32mm socket for the clutch hub nut.