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  4. EX 250

EX 250

The EX 250 is the lightest bike in our Cross Country line up. Featuring the same highlights as it’s bigger brother the EX 300, the smaller 250 takes it all easier. It’s easier on your arms, easier on your wallet and easier on the trail. There is no need for premixing fuel or tedious jetting changes, the innovative electronic fuel injection system allows for true ‘gas-and-go’ riding simplicity. With significantly reduced emissions and extended fuel range, this is the easiest bike to enter the two stroke side of cross country.

THROTTLE BODY

Our 2-stroke cross country bike uses 39mm Dellorto throttle body , ensuring precision, smooth action and high-performance. On the EX 250 the 39mm throttle body regulates the amount of air entering the engine via a butterfly valve, which is operated by dual throttle cables connected to the handlebar throttle assembly.

CYLINDER & PISTON

The 66,4mm bore EX 250 cylinder features a Twin-Valve Controlled (TVC) power valve system, which delivers smooth and controlled power throughout the RPM range. Optimal exhaust port timing is achieved with the combination of the state-of-the-art, adjustable power valve drive and a machined exhaust port window. Additionally, the cylinder features two inlet positions located on the transfer ports at the rear of the cylinder where a pair of fuel injectors are mounted. Deliver the fuel downwards into the transfer port these injectors guarantee perfect atomization with the air travelling upward to the combustion chamber. This ensures a more efficient combustion resulting in reduced fuel consumption and emissions. We match a lightweight piston to the EX 250 cylinder to ensure the highest levels of reliability and performance. It’s as simple as that!

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