The technology in our frames ensures riders enjoy playful handling and an energetic feeling on any motocross tracks. Underneath the red powder coating there’s a lightweight chromium molybdenum steel, hydro-formed, laser-cut and robot-welded chassis that’s built to perform. Designed to be rigid where it needs to be rigid and to flex where flex is needed, it provides exceptional rider feedback, energy absorption and straight-line stability.
With a short and compact profile all GASGAS motocross subframes are made from lightweight aluminum. The profile helps centralize mass while also keeping weight down.
The MC 250 is powered by a compact 2-stroke motor with a counter-balancer shaft for smooth, high-revving power. Delivering lots of torque, our power unit makes the bike super easy to use but also highly competitive – thanks to innovations like a twin-valve controlled power valve. Designed to centralize all internal moving parts, the motor also plays a huge role in the bike’s agile handling.
CYLINDER AND PISTON
The MC 250’s cylinder has a bore of 66.4 mm and is fitted with a twin-valve power valve system to churn out serious power across the rev range. The exhaust port is machined for precise power valve function, providing excellent overall power delivery. A lightweight piston keeps the motor turning freely for playful, quick-revving fun.
A 38mm flat slide Mikuni TMX carburetor ensures our 2-stroke screamer receives a constant supply of fuel, filling the motor with energy and giving riders smooth and controllable power across the full rev range.
Delivering quality, durability and reliability, the 5-speed transmission by PANKL Racing Systems is built tough, and does ensure easy and accurate gear shifting no matter how tough the conditions. The lever features an innovative tip design that prevents dirt build-up when ruts get deep and the dirt get sticky!
The magic at the heart of the motor! Made to be as light as possible and balanced perfectly to reduce unwanted vibrations, the 72mm stroke crankshaft is positioned to ensure it has little effect on handling while allowing the 250cc motor to produce it’s high-revving fun.
Key to keeping the weight of the MC 250 to a minimum, the motor’s thin and strong crankcases are made from a high-pressure die cast process. Allowing motor internals to be positioned closer together, the compact design allows for improved centralization of masses while ensuring the highest levels of rideability. A durable kickstart intermediate gear ensures exceptional starting reliability.
Our exhaust systems are key to the power delivery of all GASGAS motocross bikes. Developed to be slim using an innovative 3D process, they comply with FIM sound regulations, look great and most importantly deliver the very best performance. The MC 250 header pipe offers optimal geometry, performance and ground clearance and is fitted to a muffler that features an advanced internal construction for excellent noise damping.
The MC 250 features a Dampened Diaphragm Steel (DDS) clutch, which is robust, super reliable and contributes to the compact design of the engine. Featuring a single diaphragm steel pressure plate instead of traditional coil springs, it also has a clutch basket CNC machined from a single piece of steel.