rogervize Posted September 11, 2010 Share Posted September 11, 2010 Hi all. Newbie here. I am restoring my 1974 TY250 (I bought it new) I would like to swap out the standard 428H chain and sprockets for a 520 size. Is this a common modification? How do I go about this? If I don't do this mod is there a source for standard sprockets? I am thinking of close to original gearing of 14/52. Thanks for any advice. I am located in Melbourne Australia. Link to comment Share on other sites More sharing options...
Moderator Airhead Posted September 12, 2010 Moderator Share Posted September 12, 2010 Hello Roger and welcome I think you may be in luck with that one, TYtrials sell a kit if it fits yours, good people to deal with from all accounts, why not email them and have a mooch round their website. http://www.tytrials.co.uk/trailandtrialsuk/prod_501953-Full-Chain-amp-Sprocket-Kit-TY250-Twinshock.html Link to comment Share on other sites More sharing options...
blackhat250 Posted September 12, 2010 Share Posted September 12, 2010 Welcome Roger " no need to up chain to a 520 , its more weight, keep it light for trials Link to comment Share on other sites More sharing options...
Recommended Posts