RFX Race Front Sprocket Yamaha YZ125 87-04 Bike Protection dual-material design combines a hardened

dual-material design combines a hardened steel outer chain ring that is heated to 200°C before being perminantly fitted to our Ultralight aluminum inner

YZ450F 07-08

REDUCE ARM-PUMP // There is no cure for arm pump

Soft bag included

RFX Race Front Sprocket Yamaha YZ125 87-04 Bike Protection dual-material design combines a hardenedRFX Front Sprockets are CNC Machined from High Tensile Steel and case hardened to 60 Rockwell to resist wear. RFX sprockets also feature lightening holes on selected models but only when durability will not be affected. Features CNC Machined to extremely tight tolerances Case Hardened and core refined Alloy steel that gives you the best strength and durability.