Yamaha R1 titanium gearbox sprocket
This is a titanium gearbox sprocket for a late model Yamaha R1. I’m not sure when they changed the size and style of the nut, it must have been around 2008 or 9, but i will gladly stand corrected. The big difference is the thread pitch, the older ones are 22×1.5, the later one is 22×1.
The original nut doesn’t look like this!
Pete
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