Athena Cylinder Kit 85.00 mm for Honda CRF250R (P400210100067)

Upgrade your Honda CRF250R engine with the Athena Cylinder Kit, part number P400210100067. Designed for high-performance applications, this kit features an aluminum cylinder with a durable nickel-carbide coating and larger water jackets to support effective cooling during demanding riding conditions. The cylinder is engineered to provide dependable performance and long-term durability for motocross and off-road use.
The kit includes specially designed, high-performance hard-anodized power valves that are required for proper operation and cannot be used with the original equipment manufacturer power valves. A forged piston with a molybdenum coating is also included to help reduce friction and withstand the stresses associated with high-performance engine operation.
This Athena kit is intended for riders and builders seeking a complete cylinder and piston upgrade for the CRF250R platform. Verify vehicle compatibility and installation requirements before purchase. Professional installation is recommended to ensure correct assembly, clearance, and power-valve setup. The cylinder head is not included, so reuse or source a compatible cylinder head separately.

Features:

• Aluminum cylinder with nickel-carbide coating

• Larger water jackets designed to support improved cooling

• High-performance hard-anodized power valves

• Power valves cannot be used with OEM components

• Forged piston with molybdenum coating

• Cylinder head not included

• Compatible with Honda CRF250R applications

• Brand: Athena

• Part Number: P400210100067

Ships from Parts Unlimited.