The WISECO Piston Kit is designed for Honda CRF250R and CRF250RX applications with a 79.00 mm piston size. Developed through research and development testing to provide dyno-proven power gains, this kit features a 100% billet-machined piston for strength, optimized fit, and an improved strength-to-weight ratio. The high-compression design is specified at 14.5:1 for 250cc applications to support increased torque and throttle response.
An asymmetric skirt design promotes improved wear and even loading on the major thrust skirt. The custom-lapped compression ring is precision-fitted for improved power, while the dome design supports efficient flame travel and air/fuel burn. A DLC-coated piston pin reduces friction and improves scuff resistance, and enhanced pin oiling supports lubrication and reduced friction. The pressure seal groove helps reduce ring lifting and power loss, while ArmorGlide® skirt coating supports quieter operation and improved scuff resistance.
The kit includes the piston, rings, piston pin, and circlips. This product is made in the USA. Distributor part number: 09106940. Manufacturer part number: RE826M07900. Vehicle fitment includes 2020–2025 Honda CRF250R, 2021–2025 Honda CRF250RX, and 2026 Honda CRF250R.
Features:
- Brand: WISECO
- Product: Piston Kit
- Size: 79.00 mm
- Manufacturer Part Number: RE826M07900
- Distributor Part Number: 09106940
- Application: Honda CRF250R and CRF250RX
- High Compression: 14.5:1 for 250cc applications
- Construction: 100% billet machined
- Skirt Design: Asymmetric design for improved wear and even loading on the major thrust skirt
- Ring Design: Custom-lapped compression ring for improved power
- Piston Pin: DLC-coated to reduce friction and improve scuff resistance
- Lubrication: Enhanced pin oiling
- Seal Design: Pressure seal groove helps reduce ring lifting and power loss
- Skirt Coating: ArmorGlide® coating for reduced friction, quieter operation, and improved scuff resistance
- Included Components: Rings, piston pin, and circlips
- Origin: Made in the USA
- Fitment: 2020–2025 Honda CRF250R, 2021–2025 Honda CRF250RX, and 2026 Honda CRF250R
Fitment:
2020 Honda CRF250R
2020 Honda CRF250RX
2021 Honda CRF250R
2021 Honda CRF250RX
2022 Honda CRF250R
2022 Honda CRF250RX
2023 Honda CRF250R
2023 Honda CRF250RX
2024 Honda CRF250R
2024 Honda CRF250RX
2025 Honda CRF250R
2025 Honda CRF250RX
2026 Honda CRF250R
2026 Honda CRF250RX