Restore top-end performance with the Namura FX-10035K Forged Top End Kit, designed for select Honda CRF250R and CRF250X four-stroke motorcycles. This standard-bore kit is intended for engines with a 77.96 mm cylinder specification and features an 11:1 compression ratio. It is designed for use with Nikasil-plated cylinders and provides the essential components needed for a reliable top-end rebuild.
The kit includes a forged piston, piston rings, wrist pin, wrist-pin clips, top-end bearing, and gasket kit. Each component is selected to support proper fit, dependable operation, and efficient engine service when rebuilding a compatible Honda engine. The forged piston construction is suited to the demands of motocross, off-road, and recreational riding applications.
Namura part number FX-10035K fits 2004–2009 Honda CRF250R models and 2004–2007 Honda CRF250X models. Confirm the motorcycle year, model, cylinder condition, and required bore specification before installation. This top-end kit is supplied by Namura and is intended as a comprehensive replacement solution for compatible standard-bore applications.
Features:
- Complete top-end kit includes forged piston, rings, wrist pin, clips, top-end bearing, and gasket kit
- Standard-bore design for 77.96 mm cylinder specifications
- 11:1 compression ratio supports compatible Honda engine applications
- Designed for Nikasil-plated cylinders
- Fits 2004–2009 Honda CRF250R models
- Fits 2004–2007 Honda CRF250X models
- Brand: Namura
- Manufacturer part number: FX-10035K
- Vendor part number: FX-10035K
Fitment:
2004 Honda CRF250R
2004 Honda CRF250X
2005 Honda CRF250R
2005 Honda CRF250X
2006 Honda CRF250R
2006 Honda CRF250X
2007 Honda CRF250R
2007 Honda CRF250X
2008 Honda CRF250R
2008 Honda CRF250X
2009 Honda CRF250R
2009 Honda CRF250X
2012 Honda CRF250X
2013 Honda CRF250X
2015 Honda CRF250X
2016 Honda CRF250X
2017 Honda CRF250X