RFX Race Front Sprocket Yamaha YZ125 87-04 (12T) 

RFX 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.