Renthal Grooved Front & Twinwall Rear Sprocket Kit - 13/49 BLACK - Yamaha WR450F, YZ250, YZ450F

Description

Renthal Sprockets Chain Kit - T Grooved Front Countershaft Sprocket & T Black Twinring Rear Sprocket + + + + + + + + + + FRONT COUNTERSHAFT SPROCKET: Retail Price: $25.95 + + Renthal Front Chainwheels are simply the finest front chainwheel on the market today. Their Front Chainwheels feature a specially developed Nickel-Chrome-Molybdenum steel which is case hardened and core refined to give the ultimate combination of strength and hardness. Precision CNC Machined to extremely tight tolerances. . Case hardened and core refined 655M13 Nickel-Chrome-Molybdenum alloy steel to give the ultimate combination of strength and hardness. . Self-cleaning mud grooves between every tooth on both sides help prevent dirt build up + + + + + TWINRING REAR SPROCKET: Retail Price: $99.95 + + Unique flat face design keeps weight to a minimum and means the TwinRing is as narrow as a regular chainwheel Inner Ring is high strength Ultralight 7075 T6 Aluminum. Outer Ring is Electroless Nickel Coated steel Outer is expanded at 200C and then fitted to inner, creating a permanent bond for the life of the sprocket Precision CNC machined to extremely tight tolerances Flat socket head screws add additional strength to the chainwheel during side impacts Self-cleaning mud grooves between every tooth on both sides help prevent dirt build up .