Hammerschmitdt! crankset

This is the entire setup, includes XO shifter, 2 bottom brackets and all the small parts you need, plus spares and rebuild parts. It's a two speed front transmission, equivalent to a granny and middle ring setup, except you can shift anytime. Shifts while stopped, pedaling backwards, under load, and the chain will never come off. Great for fast aggressive riding. Your frame must have ISCG tabs. this is over 500 bucks worth of parts. Call or email with questions. Joe
415 497 6900