What is the top speed of CFMOTO 250SR in first gear?
2 Answers
The CFMOTO 250SR is equipped with the same 250cc single-cylinder engine as the NK250, which is considered one of the best in its class in China. The top speed in first gear does not exceed 50 km/h, while the maximum speed of the 250SR is around 140 km/h. Below are the detailed specifications of the CFMOTO 250SR: Vehicle Parameters: Length x Width x Height 2010×750×1080mm, Wheelbase 1360mm, Seat Height 780mm, Fuel Tank Capacity 12L, Curb Weight 165kg, Available Colors Starlight Black and Starlight White. Engine Parameters: Engine Type Single-cylinder, liquid-cooled, DOHC, Displacement 249cc, Bore x Stroke 72×61.2mm, Maximum Power 20.5kW/9750rpm, Maximum Torque 22Nm/7500rpm, Compression Ratio 11.3:1, Clutch Type Slipper Clutch, Clutch Operation Mechanical Cable, Throttle Type Mechanical Throttle, Power Modes Sport and Economy, Emission Standard China IV. Chassis: Handlebar Type Clip-on, Rear Swingarm Stamped Sheet Metal Monocoque, Wheel Type Aluminum Alloy, Front Tire 110/70R17, Rear Tire 140/60R17, Front Suspension Φ37 Inverted Hydraulic Damping Shock Absorber, Rear Suspension Monoshock, Front/Rear Suspension Travel 110/46mm, Front Brake Φ292mm Single Disc with Opposed Four-piston Caliper, Rear Brake Φ220mm Single Floating Disc with Single-piston Floating Caliper, ABS&CBS ABS. Other Features: Headlight LED, Taillight LED, Turn Signals LED, Instrument Panel TFT with Bluetooth Connectivity, T-BOX Standard.
The top speed of the CFMOTO 250SR in first gear is approximately 45 km/h, which is primarily determined by the engine's design. Its engine focuses on delivering high torque rather than high RPM in lower gears, so first gear is intended for starting or climbing hills, not for high-speed riding. The gear ratio in the transmission system limits the rotational speed of first gear to a lower range, making it difficult to exceed this speed even with full throttle. Additionally, the motorcycle's weight and wind resistance further prevent first gear from achieving higher speeds in real-world riding conditions, while also increasing the risk of engine overheating. During normal riding, it's best to shift to second gear within one or two seconds to protect the engine and improve fuel efficiency. Beginners might mistakenly believe that first gear can deliver high speeds, but these limitations are set for safety reasons—to prevent loss of control and potential accidents at low speeds.
