Well my concern is that is wasent doing this previously, took it out for a couple miles today and took it home and BAM it started doing it after i took the rear bolts off to adjust. it wasent doing it previously... and the jump from tight to loose isent enough to throw the chain. Is there anyway i had the chain too tight for the past few days ive been riding and somehow it messed everything up? there was no slack in it what so ever, i know you need some but i couldent get the right balance and it looked terrible with the chain slacking so much(a good few inches) so i said **** it and rode about 8 miles with a superrrr tight chain...