Description
Grinding through youth motocross tracks and practice days takes a toll on the front sprocket long before the rest of the drivetrain shows wear, and this Renthal 15-tooth 428 sprocket for the 22-23 Yamaha YZ 85LW / 03-17 YZ 85 is built with that reality in mind.
This is a solid-face sprocket rather than the grooved GP pattern, built for the cleaner running conditions of street and pavement use.
- Made from a hardened steel alloy chosen for wear resistance under repeated chain load, not just raw hardness
- Precision CNC manufactured to Renthal tolerances, so every 15-tooth sprocket in the batch matches the last one for fit and balance
- A solid tooth profile built for street and track use, where chain lubrication is consistent and mud clearance is not the concern it is off road
- Machined to remove excess material without weakening the tooth root, keeping rotating mass down where it matters most
- Held to strict concentricity standards so the chain runs on a true circle instead of pulsing tight and loose through every revolution
- Direct bolt-on replacement using the stock mounting pattern, no spacers or modified hardware required
- 15-tooth count on 428 chain pitch, matched to the 22-23 Yamaha YZ 85LW / 03-17 YZ 85 front output shaft
Confirm the countershaft spline count on the 22-23 Yamaha YZ 85LW / 03-17 YZ 85 matches this part before ordering, since some model years share a name but not a spline pattern. IPD Racing can verify the 15-tooth, 428 fitment against your VIN if needed.
