pheonix_tat Posted October 30, 2011 Report Share Posted October 30, 2011 Hello all, this is my first post so please be gentle. I know nothing about trials biking. I recently bought a TY80 for my son to use on my parents farm. It was in full working order but a bit tatty, so it's been stripped down cleaned, full respray, replacement stainless bolts, new cables etc. All was going well until I went to fit the new chain and found it is approximately 6 inches longer than the old one. I've checked the Haynes manual and it should be the right on for a standard bike, DID 420 106. The rear sprocket is standard 41 T however the front sprocket is 13 T (rather than standard 12T) but surely this can't account for such a difference in length. I don't see any other modifications. From memory I think the existing is 96 link. Any help appreciated. Should I shorten the new chain to fit or am I missing something? Many thanks, Rich Quote Link to comment Share on other sites More sharing options...
jimbo349 Posted October 30, 2011 Report Share Posted October 30, 2011 Hello all, this is my first post so please be gentle. I know nothing about trials biking. I recently bought a TY80 for my son to use on my parents farm. It was in full working order but a bit tatty, so it's been stripped down cleaned, full respray, replacement stainless bolts, new cables etc. All was going well until I went to fit the new chain and found it is approximately 6 inches longer than the old one. I've checked the Haynes manual and it should be the right on for a standard bike, DID 420 106. The rear sprocket is standard 41 T however the front sprocket is 13 T (rather than standard 12T) but surely this can't account for such a difference in length. I don't see any other modifications. From memory I think the existing is 96 link. Any help appreciated. Should I shorten the new chain to fit or am I missing something? Many thanks, Rich Just shorten it to the right length and let the little lad go play! Quote Link to comment Share on other sites More sharing options...
handsome_al Posted November 1, 2011 Report Share Posted November 1, 2011 (edited) Hi Rich ..... I have to agree with jimbo349 Fit the chain; mark the link; cut to length; ride the bike. Workshop manuals are great for reference but they aren't the be-all-end-all. Edited November 1, 2011 by handsome_al Quote Link to comment Share on other sites More sharing options...
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