Bought a staton crank shift kit received incomplete kit and David refuses to make it right. The front Gear box support bolt that runs through the U-bolt is used to align the chain and drive gears, he sent me a 3/8" bolt with two nuts to accomplish this, there should be coupling nuts included to lock the gear box in place, he did not send them, he seems to think I should go out and buy them, this is a $800 kit mind you. Also, no tension spring included for the chain rollers. I send him e mails regarding this and he either ignores them or gives me one or two word replies. The BB cups he manufactures ruined a $200 bike, he refuses to accept the fact that they are machined improperly. I hope I can get this kit together, I guess I can use nuts and washers as spacers on the front support bolt, it's just been very frustrating, no instructions, wrong/missing parts and no customer service......Never again.