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M6 and M8 hex-head bolts
Manufactured from only the highest grade 304 stainless-steel
The spoke faces are slightly arched with a deeply recessed bolt circle for added depth
1985-1986 Yamaha QT50
2001-2007 KTM 640 Adventure
Protaper 038338 PTR Front Sprocket body-racks-gas-can-carriers M6 and M8 hex-head boltsRace Spec (RS) Front Sprockets are CNC machined and internally broached to precise tolerances from case hardened, core refined chromoly steel. Computer engineering ensures precise fitment, optimal weight savings and perfect balance. The result is minimal chain drag, maximum horsepower, and uncompromising strength. A proprietary coating further reduces wear and corrosion, yielding a front sprocket unparalleled in the market
