Description
Replacing a rear sprocket is routine maintenance, but choosing this 46 tooth Race Spec unit instead of a generic replacement changes how that maintenance interval plays out. That combination of self-clearing grooves and CNC-held tolerances is what separates a Race Spec sprocket from a generic aftermarket stamping, and it shows up first in how long the teeth hold their shape under load.
Chain stretch happens faster on a sprocket that is already fighting mud buildup, so keeping the teeth clear during a moto has a real effect on how long the whole final drive lasts.
- Angled Mud Groove design sheds packed mud and debris automatically during operation
- Increases usable tooth surface area by up to 40 percent over competing sprockets
- 46 tooth count in black finish, sized for Yamaha rear hub applications
- CNC machined for tight tolerances and consistent tooth geometry across the whole run
- Countersunk mounting holes self-center the sprocket on the hub, no separate center guide needed
- Improved chain-to-tooth contact reduces localized wear and extends service life
- Precision-cut teeth maintain consistent engagement even as mud and grit build up mid-race
Whether this is a straight replacement or a deliberate gearing change, it is engineered for Yamaha motocross and off-road models using this rear hub bolt pattern and installs with standard tools. IPD Racing lists it under part number 033214.








