CYLINDER KIT BIG BORE; HONDA CRF 250 R 2022/2024 - 85MM

Unleash the full potential of your machine with this massive 290cc displacement upgrade. Designed specifically for riders who crave explosive acceleration and relentless power, this complete bolt-on kit transforms your engine's performance from the bottom end all the way to the redline. By increasing your bore to a robust 85mm and pairing it with high-quality, precision-engineered components, you'll experience a dramatic boost in torque and overall horsepower. Whether you are chasing holeshots or tearing up the backcountry, this upgrade delivers race-proven durability and uncompromising performance to keep you ahead of the pack. Massive 290cc displacement upgrade85mm precision-machined boreOptimized for aggressive torque and horsepower gainsIncludes plug-and-play GET electronic tuning moduleHigh-compression, lightweight forged piston designBolt-on installation with no casing modifications requiredIncludes: Athena Big Bore Cylinder (85mm)Forged PistonPiston Rings, Wrist Pin, and CirclipsGET Electronic Module and Wiring HarnessCustom Athena Top-End Gasket Kit (Cylinder head and base gaskets)Note: The cylinder head and base gaskets contained in the kit are specifically developed for Athena cylinder kits. Whenever the cylinder kit is disassembled, replace the gaskets with the specific Athena spare gasket kit. DO NOT use OE (Original Equipment) replacement gaskets.