Rear Sprocket - 42 Tooth The 7075 T651 aluminum we use for these sprockets receives an extra tempering which reduces distortion and provides optimal thickness vs. typically thinner 7075 T6 sprockets
100% machined, no stamping or grinding
Optimal tooth thickness results in maximum tooth and chain contact
Fits BMW '08-'12 F650, '08-'18 F800 GS models w/ 10.5 mm bolts
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