Motorcycle Engine (Engine for Motorcycle)(Motor)(Engine) / Motor in China/Engine in China Main Parameter for SS150: Engine Specific: single cylinder/ four strokes/ignition/stand style Bore: 62.0mm Stroke: 49.5mm Displacement: 150mL Compress Ratio: 9.0:1 Rated Power: 8.5kw/8000±400rpm Max. Power: 9.0kw/9000±450rpm Max. Torque: 9.5N.m/7500±375rpm Idle Speed: 1500±100r/min Chongqing Shuangshi Motor Manufacturing Co., Ltd has great experience in manufacturing high quality Motorcycle Engine, Motorcycle, ATV, Dirt Bike, Pocket Bike, Scooter, etc with very competitive price. Motorcycle/ATV/Scooter/Dirt Bike/Pocket Bike/Motorcycle Engine/Motor/Motorbike...... Chongqing Shuangshi Motor Manufacturing Co., Ltd is a large manufacturer of ATV, scooter,motorcycles,dirt bike, and engines in Chongqing, China. We manufacture mainly motorcycles (dirt bike, pocket bike, race bike, scooter,ATV), engines(50cc,70cc,90cc,100cc,110cc,125cc,150cc,etc), gasoline generator, water pump, tillage machine,farm machine,etc. ATV: 50cc ~ 250cc: One of our speciality is our ATV 150cc, ATV200cc has Shaft Drive or Chain Drive for your choise. Manufacturer: Chongqing Shuangshi Motor Manufacturing Co.,Ltd http://motors.ec51.com