Description
This Wiseco piston kit is precision engineered for Honda XR400R, TRX400EX, and TRX400X models. Featuring an 87mm bore and 11:1 compression ratio, this forged piston offers superior strength, reduced weight, and improved heat transfer for enhanced performance and durability. The kit includes piston, rings, wrist pin, and circlips for a complete installation. All Wiseco 4-stroke pistons are manufactured to the highest tolerances, delivering reliability for both racers and recreational riders. Only Wiseco replacement ring sets are compatible with Wiseco pistons.
- High silicon, low expansion aluminum for long life
- Diamond-turned CNC finish for precise fit
- Compatible with modern cylinder bore compositions
- Complete kit for ease of installation
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