I too am very happy with Fabian's sprocket. I just wish the same could be said about my rear wheel bearings. The new bearings lasted less than 400km. I bought another set of new FAG bearings and got them sent from England (GLS took two weeks to transport them from Paris Airport to the Paul Ricard circuit where my sick M3W is lying) but they seem to allow far too much movement at the rear wheel, so we are reverting from the FAG angular contact to the original deep track SKF. I have suggested fixing the bearings in the hub with Loctite 620.
Just to remind folk, if you are going to update an early M3W with Fabian's sprocket, you need to change to a late type black rear hub from the original silver coloured one.
