Im about to start with my final drive sprocket gearing , Ive got a renthal 36 39 40 41, tooth sprocket which im going to start with. Sticking with 15 front . Ordered a new chain , 108 links , I think I need 101, but better too many than not enough . Will give a top speed of 159 mph (with 41 tooth) and a 1st gear speed 0f 61 mph . Maybe 151 rwbh will be a bit savage though . Any thoughts.