... Noise, more powerful. 5. Stronger frame,good quality Type: Kids pocket bike 49ccEngine: 49CC, single cylinder, air cooled, 2-strokeEngine sprocket: ... ChainChain cover: FullTire: Front: 90/65-6.5 tubeless pneumatic racing tires, alloyTire: Rear: 110/50-6.5 tubeless pneumatic ... racing tires, alloyBrake system: Disc brake Brake system: Disc brakeFront ...