Cylinder and control unit kit Athena GET electronics Big Bore 290cc Honda CRF 250 R 22-24 Big Bore 290cc

Cylinder and control unit kit GET Athena Big Bore 290cc electronic module for Honda CRF 250 R 2022-2024.

If you are looking for more power, faster response, and a more consistent torque delivery on your Honda CRF 250 R, this Athena 290cc Big Bore kit is the perfect upgrade. Ideal for riders who want to get the most out of the CRF 250 R MY 2022-2024 and feel a fuller, more progressive engine with stronger drive out of every corner.

The Cylinder oversized aluminum cylinder with high silicon alloy features an integrated steel liner to ensure thermal stability and efficient heat dissipation. The high-performance forged piston, with pin and Piston rings included, is designed to work in perfect harmony with the new bore, delivering extreme durability, minimal wear, and superior sealing even under prolonged use and demanding riding conditions.

With this kit you will experience a more aggressive engine with more immediate acceleration at the touch of the throttle in any riding phase. Athena developed this kit using its racing experience to optimize this kit.

The included GET Boost electronic module is preconfigured for the CRF 250 R Big Bore 2022-2024. It connects directly to the injector and throttle body connectors, allowing quick plug & play installation without replacing the original Honda ECU. The dedicated mapping guarantees strong and linear power delivery, perfectly balanced with the new Cylinder.

The CNC-forged piston combines mechanical strength, lightness, and reduced friction. All necessary gaskets are included.

Key points

• Cylinder oversized cylinder with high-performance forged piston
• GET Boost module included, preconfigured, and easy to install
• Advanced materials for maximum strength and reliability
• Premium gaskets included for perfect and long-lasting sealing

Technical specifications

• Displacement: 288.83 cc
• Bore diameter: 85.00 mm
• Bore increase: +6 mm
• Net weight: 2.03 kg
• Compression ratio: 13.7:1