Protaper 038351 PTR Front Sprocket protection-shoulder Double backing plates for use

Double backing plates for use with regular Power Point push-through studs and 2-ply tracks

domed cylinder head

1978-1979 Yamaha XS650

Heavily walled and adhesive lined

Protaper 038351 PTR Front Sprocket protection-shoulder Double backing plates for useRace 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