2020-2026 Honda CRF250R DEF Racing 14.7:1 High Compression Piston Kit

Description

The DEF-Racing 14.7:1 High Compression Piston Kit is a serious performance upgrade for the stock Honda CRF250R. Developed and tested extensively, this kit delivers a noticeable increase in power and snap throughout the RPM range, transforming the bike’s somewhat sluggish stock feel into a much stronger, more responsive engine.

Built for durability and longevity, this piston is the perfect choice for serious riders and racers looking to get the most out of their CRF250R.

Key Features:

• Performance Upgrade: Optimized crown and skirt design delivering substantial performance gain. Improved low-end torque and top-end power.
• Compatibility: Drops directly into a stock engine without the risk of clearance issues. It is recommended to use slightly higher-octane fuel over 91/93 pump. However, pump fuel can be used but recommend pulling a degree or two ignition timing with the HRC tuner software if using the OEM ECU. (You can send us your stock ECU/Vortex or GET and we can remap for you if needed)
• High-Quality Manufacturing: MFG by JE Manufacturing from premium 2618 aluminum, this piston provides excellent strength and durability for high-performance applications.
• Upgrades: For maximum performance, we recommend pairing the piston kit with our Vortex ECU and custom-tuned maps to unlock the full potential of your engine.

Kit Includes:

• 14.7:1 JE Piston
• DLC Coated Wrist Pin
• Ring Pack manufactured in the USA
• Circlips