My chain is stretched to the max . I have a new chain and sprockets but I can't put them on until I get my new extended swingarm . Anyway today I was cleaning my chain and I noticed that it was 1" of play then when I turned the tire it would loosen to about 3" of play . The sprockets are still in good shape , tires on straight , I did take the rim off then cleaned and remounted it . Everything seemed okay but the chain still goes from loose to tight when the tire is spun. I did notice that the rubber bushings in the cush drive had some wear , could this do it ? I've never ran into this problem before . pleaase help me because i'm stumped. The bike is my daily driver . Thanks!!!!