Wiseco GP Series Piston Kit with Gaskets - Honda CR250R (2005-2007) - 66.40mm Bore - Single Ring - 2-Stroke Race-Spec
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout ā Pay in 4 available
Wiseco GP Series Piston Kit with Gaskets - Honda CR250R (2005-2007)
The Wiseco GP Series represents the pinnacle of 2-stroke piston technology for the legendary Honda CR250R. Engineered for endurance racing and sustained high-RPM operation, this race-spec piston features advanced coatings, extra lightening operations, and a single ring design for maximum performance - the same technology used by professional racers!
š GP Series Race-Spec Features
- Electra Coating - Crown, ring groove(s), and pin bores coated for maximum wear resistance
- ArmorGlideĀ® Skirt Coating - Protection from micro-welding, galling, and detonation
- Single Ring Design - Reduced friction and weight for maximum performance
- Extra Lightening Operations - Enhanced throttle response
- Made in USA - Engineered, forged, and machined in the USA
Kit Includes
- Wiseco GP Series Piston - Premium 4032 aluminum alloy with Electra + ArmorGlideĀ®
- 1x Ring - Single ring design
- Wrist Pin
- Circlips
- Wrist Pin Bearing
- Top End Gasket Set
Key Features
- GP Series design for professional-level racing performance
- 4032 aluminum alloy construction - optimized for 2-stroke applications
- Dual coating system - Electra + ArmorGlideĀ® for ultimate protection
- Single ring design for reduced friction and weight
- Designed for endurance and sustained RPM riding
- Complete top-end gasket kit included
- Wrist pin bearing included - everything for a complete rebuild
- Standard bore - direct OEM replacement
Important Notes
- Wiseco ring types are not interchangeable
- Wiseco pistons can be fitted only with Wiseco rings
- Cylinder sleeves must be purchased separately if needed
Piston Specifications
- Bore Size: 66.40 mm (Standard)
- Piston Diameter: 66.35 mm
- Stroke Length: 72.00 mm
- Material: 4032 Aluminum Alloy
- Skirt Coating: ArmorGlideĀ® + Electra
- Ring Design: Single Ring
- Style: GP Series
Engine Specifications
- Displacement: 249cc
- Engine Type: 2-Stroke
- Weight: 1.44 lbs
Fitment
- Honda CR250R: 2005-2007
The Final CR250R Years
2005-2007 were the final production years for the legendary Honda CR250R - Honda discontinued 2-stroke production after 2007. This GP Series piston keeps these iconic machines competitive!
Why Wiseco GP Series?
The GP Series is Wiseco's ultimate 2-stroke racing piston. The Honda CR250R is one of the most legendary motocross bikes ever made - and this piston delivers the reliability racers need to win!
š¦ Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
