Description
A worn or damaged countershaft sprocket compromises your XR100R or XL100S’s power delivery and acceleration—replacing it with a precision-engineered SUNSTAR sprocket restores optimal chain engagement and drivetrain efficiency. Built from case-hardened chromoly steel with Parkerizing corrosion protection, this OEM-quality component is engineered to handle the demands of trail riding and competitive use without sacrificing longevity or performance.
Whether you’re rebuilding after high-mileage wear or upgrading for reliability, this bolt-on replacement delivers the durability and precision fit you’d expect from a manufacturer trusted by Honda since 1946.
- 13-tooth countershaft sprocket
- Case-hardened chromoly steel
- Parkerizing corrosion treatment
- Honda XR100R (1985–2003)
- Honda XL100S (1979–1985)
- Bolt-on installation
- OEM manufacturing standards
- MPN: 20213
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