Description
If you’re running a Honda XR100R and want to reliably extract more power without sacrificing engine longevity, a quality piston kit is non-negotiable. The Wiseco 4666M05350 replaces worn or damaged pistons with a precision-engineered component that improves combustion efficiency and bump up compression ratio for measurable gains in torque and throttle response. This is the kind of foundational upgrade that pays dividends whether you’re trail riding, competing, or just demanding more from your machine.
- Bore size: 53.5mm
- Fitment: Honda XR100R 1985–2003
- Material: Forged aluminum alloy
- Compression ratio: High
- Precision-machined construction
- Includes piston rings
- Includes circlips
- Bolt-on installation
- MPN: 4666M05350
- OEM replacement quality
