I probably should have mentioned this in my first post but I'm not replacing my crank because of any problems,the chain suck is no big deal, I was just looking for something nicer than what it came with.As far as my chain is concerned,I rode the hell out of it because I'd knew I was going to replace the drivetrain.Ive always heard you have to be careful on what crank and bottom bracket to get for a bicycle.I don't want to buy more than one bb if I can help it. Regardless,I appreciate all the replies.Hope I didn't waste anyone's time,next time I post I will give reasons for replacement of parts.