Description
This black 49 tooth rear sprocket is one of the more overlooked upgrades in a drivetrain rebuild, but riders who run it rarely go back to a standard sprocket. 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.
- 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
- 49 tooth count in black finish, sized for Kawasaki/Suzuki rear hub applications
- Reduced mud packing lowers drivetrain drag, which keeps more engine power at the rear wheel
- Race Spec construction is built to handle sustained race-pace loads, not just casual trail riding
- 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
Whether this is a straight replacement or a deliberate gearing change, it is engineered for Kawasaki and Suzuki motocross and off-road models sharing this rear hub bolt pattern and installs with standard tools. IPD Racing lists it under part number 033190.








