CYLINDER ONLY 10-17 CRF250 80mm, PSYCHIC MX-09554-1 270cc CX-10004-BB3

The Psychic Oversize +3.20mm Bore Cylinder for the 2010–2017 Honda CRF250R is designed for increased displacement and performance. Featuring an 80mm bore for a 270cc capacity, this cylinder is a direct bolt-on replacement with OEM-level compatibility. Constructed with premium materials and advanced techniques, it ensures durability, precise fit, and reliable operation.

Features

• Oversize +3.20mm bore for increased displacement (270cc).
• Direct bolt-on design with no replating required.
• Nickel Silicon Carbide plating for extended cylinder life.
• Honed to exact dimensions for smooth piston installation.
• Sleeve specifications: Nikasail coating with a hardness of HV500–600.
• Material: JIS AC4B-T6 aluminum with a hardness rating of HR65 and above.
• Sleeve outer diameter: 86.40mm; Height: 35.60mm/87.50mm.
• Sleeve thickness: 0.08 ± 0.02 mm.

Specifications

• Bore Size: 80mm
• Displacement: 270cc

Cross Reference OEM Part Numbers

• Honda: 12100-KRN-A40

Vehicle Compatibility

• Honda CRF250R (2010–2017)