Thursday, 8 May 2025

Athena

Athena - KX 250 EXTREME Big Bore Kit


Alonte, Vicenza based Athena's innovative new EXTREME performance Big Bore Kit for the 2023-2024 Kawasaki KK 250 increases the displacement of the Kawasaki to 300 cc - "providing a significant boost in power and torque across the entire power curve".


Designed for the most demanding riders, the Big Bore Extreme Cylinder Kit is the "ideal choice for those looking to push the performance limits of the KX 250 without compromising the bike’s renowned handling and lightweight feel. The kit includes an aluminum alloy cylinder with an Ø 85 mm steel liner, a premium forged piston and all the necessary gaskets."

To maximize performance, the kit includes the GET Boost module, developed by Athena’s award winning GET electronics division. GET Boost allows users to fully exploit the potential of the new cylinder kit without modifying the original ECU or electrical system of the Kawasaki KX 250, simplifying installation with dedicated connectors for the primary injector and throttle body.

The cylinder, produced through Athena’s proprietary cofusion process, combines a high-silicon aluminum alloy with a steel liner, ensuring optimal heat dissipation and excellent wear resistance, even under extreme conditions. Cofusion is a steel making process that sees carbon steel smelted from the combination of cast and wrought iron.

The forged piston, treated with molybdenum disulfide to reduce friction and increase resistance, guarantees durability and maximum efficiency, thanks to its DLC coated aerospace-grade steel pin.

The Big Bore Extreme cylinder kit for Kawasaki KX 250 is designed for quick and easy installation. Each component has undergone rigorous testing both in the lab and on the track to ensure superior reliability and performance. This kit produces reliable power increases and a smooth, continuous power delivery, transforming the off-road riding experience.


ATHENA

www.athena.eu