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shopping for a new rear sprocket - TY 250A

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Tillerman6
in Yamaha

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Ladies and Gents- has anyone recently bought a new rear sprocket for their TY250A  - I mostly ride fire roads - bike is still not set up for trials-  The sprockets and chain are all worn out-I can start over with either 428 or 520 chain but durability is important to me- I'll be miles and miles from the truck if something goes wrong. But getting back to the question- who is a good supplier in the USA?  And part numbers if you have them please!

 

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    In the US I'd contact Bob Grinder of B&J racing, he's the TY guru

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