Seller notes

Vortex-3289 NEW! Vortex 17-tooth 520 front sprocket. Machined from the highest quality steel. Case hardened and precision cut with less than .1mm tolerance. Works with a 520 chain and rear sprocket setup. Fits: 1998-2014 Yamaha R1 As a general rule, 1 less tooth on the front sprocket is equivalent to adding 2-3 teeth to the rear sprocket!...

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