Description
If you’re running a WR250R/X and want to unlock genuine displacement gains with measurable power increases, the ATHENA Cylinder Kit delivers the reliability and precision engineering that separates bolted performance from half-measures. This 83mm big-bore solution combines proven Athena craftsmanship with purpose-built internals designed specifically for the Yamaha platform—no guesswork, no compromises. Whether you’re prepping for the track or maximizing your trail bike’s potential, this kit bolts in cleanly without requiring machine work or fabrication.
- Bore diameter: 83mm
- Application: WR250R/X only
- Cylinder material: Aluminum
- Cylinder coating: Nickel-carbide
- Water jacket: Enlarged design
- Piston: Forged construction
- Piston coating: Molybdenum
- Gasket kit: Included
- Installation: Bolt-on assembly
- Machining required: None
- MPN: P400485100032
- Includes: Step-by-step instructions
