Im changeing the sprokets and chain on the se as there fecked, the rear is proving to be a problem, the 5 bolts have come undone no problem, the cover has come off BUT the sproket appears to be attached to the 5 nut type holders that go insid the cush drive and the 5 bolts bolt into, the new sproket dosent have this so im assuming i use the old ones, problem is the 5 nuts looke to be attache dto the sproket and they refuse to more, any idea if there suposed to come off, or can i but some more from somewhere, is there a bike it shares the cush drive and mounting dowls with... any help firstly to the dowls/nits come off if so how, push fit? screw? and failing that where can i get some? Cheers