Cylinder Kit ATHENA P400270100027 Big Bore d 86 mm, 282 cc to increase performance za HUSQVARNA FC 250 2023-2027, GAS GAS MC 250 F 2024-2027

Discover how to take your KTM SX-F 250 performance to the next level with the Athena Big Bore Cylinder Kit with GET Boost, engineered to increase engine displacement and deliver more power and torque throughout the power band.

This kit is the ideal solution for riders looking to push their KTM beyond stock performance while combining increased displacement with dedicated electronic engine management and a smooth, controllable power delivery.

Enhance Your KTM SX-F 250 Performance

The kit includes the Big Bore cylinder, forged piston with wrist pin and rings, complete gasket set, and GET Boost electronic module.

Developed through Athena's extensive off-road and racing experience, the cylinder kit is engineered to deliver a meaningful performance increase with smooth and progressive power delivery across the RPM range.

Electronic Innovation with GET Boost

The GET Boost, developed by Athena's GET division, is included in the kit to optimize engine management for the new Big Bore configuration.

Its dedicated calibration allows the increased displacement to be fully utilized while optimizing engine operation and power delivery, without requiring modifications to the stock ECU or motorcycle wiring system.

Backed by GET's experience in international off-road racing, the system combines increased performance with straightforward installation.

Easy Installation and Maximum Integration

The GET Boost is designed for quick and non-invasive installation.

The module connects to the original system through the dedicated harness, without requiring permanent modifications to the motorcycle's electrical system or stock ECU.

The GET Boost is supplied pre-calibrated for the specific Big Bore configuration, allowing riders to immediately take advantage of the engine's increased performance potential.

High-Performance Big Bore Cylinder

The cylinder has been specifically engineered to handle the increased displacement and the higher mechanical loads generated by the upgraded configuration.

Its design focuses on high mechanical strength, effective thermal management, and reliable performance during demanding motocross use.

The increased displacement provides greater power and torque potential while maintaining a smooth and controllable power delivery.

High-Performance Forged Piston

The kit includes a high-performance forged piston engineered to combine strength, low weight, and precise dimensional control.

The piston design and manufacturing process provide the characteristics required to withstand the increased loads generated by the larger displacement, helping maintain consistent performance and reliability.

The piston is supplied complete with wrist pin and piston rings for a complete installation solution.

Complete Gasket Set

The kit includes all gaskets required to install the new cylinder assembly, ensuring proper engine sealing and simplifying the installation process.

The included components are designed to provide reliable, long-lasting sealing performance under demanding operating conditions.

Take Your KTM SX-F 250 to the Next Level

The Athena Big Bore Cylinder Kit for KTM SX-F 250 with GET Boost is the ideal choice for riders looking to unlock greater engine performance through a complete and integrated solution.

More displacement, more performance, and dedicated electronic management: everything needed to transform the KTM SX-F 250 into an even more powerful and exciting motocross machine.

Race Use Only Product – Not intended for street use.

WARNING: the cylinder head and base gaskets contained in the kit are specifically developed for Athena cylinders kits. Whenever the cylinder kit is disassembled, replace the gaskets with the specific Athena spare gasket kit: DO NOT use OE replacement gaskets.