... 150cc GY6 engine 2)four whell disc brake shukeda,ATV,dirt bike,pocket motorcycleExperience the Newly Design of The Xracer YS01 150cc ... and handling stability!X-Racer 4 wheels motorcylce,cooled pocket bike,offroad motorcycleSpecifications: 1) Engine type: GY6 engine, fully automatic, ... /rear):12 x 3.5-10 10) Transmission mode: chain 11) Brake mode (front/rear): dual hydraulic disc / hydraulic disc12) ...