Quote:
Originally Posted by
cooper1973
...i found that the rolley under my chain was missing thought great then i remembered there is a spare one bolted to the frame...
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That is not a spare! - its to stop the chain hitting the frame/exhaust if you fully compress your suspension (like landing a jump, or perhaps more realistically, going over a really big bump!)...
I'm not near my bike right now, otherwise I'd measure the lower roller for you, but I'm sure someone will be along soon with the diameter...
Alternatively, you could just order and OEM one from a Yamaha dealer - on the whole I've found plastic parts are not that expensive OEM (this might be the one that is though!)
Jx