Renthal R3 Chain & Sprocket Kit YZ250 YZ450F
Kit includes a Renthal TwinRing rear sprocket, Renthal front sprocket and new Renthal R3-3 Works O-Ring 520 x 120 link chain.
Renthal R3-3 520 O-Ring Chain 120L
The new R3 chain range incorporates Renthal's SRS (self-regulating seals) ring system increasing longevity. The R3-3 chain offers an 8% savings in mass with ample strength for the light middle-weight and many mid-weight machines with 520 pitch. Constructed using the same quad riveting process to manufacture the R4 chain range.
Renthal TwinRing Rear Sprocket
Unique flat face design keeps weight to a minimum and means the TwinRing is as narrow as a regular chainwheel. 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.
Renthal Front Sprocket
- Inner ring is high-strength, ultralight 7075-T6 aluminum
- Outer ring is electroless nickel coated steel, expanded at 200°C and then fitted to inner, creating a permanent bond for the life of the sprocket
- Precision CNC-machined to extremely tight tolerances
- CNC machined from case hardened and core refined 655M13 Nickel Chromium steel
- Machined self-cleaning mud grooves at each tooth to help increase wear resistance