Big bore kit to increase displacement. Typically includes cylinder, piston, and necessary gaskets.
Athena is an Italian manufacturer of cylinder kits, big bore kits, gasket sets, and oil seals for a wide range of models.
Fits these engines
- Honda CRF250R 2010-2017
- Honda CRF250X 2010-2011
Available versions: 81.95 mm A, 81.96 mm B. Measure your cylinder before choosing an oversize.
- Brand: Athena
- Type: Big bore kit
- Motorcycle brand: Honda
- Model: CRF250R, CRF250X
- Year: 2010-2017
- Article number: 420-5-0820-0002A / 420-5-0820-0002B
Unsure about the correct size or application? Contact us, and we'll help you before you order.