ZT310-R2 dark gray bright blue cover assembly (gel battery/lithium battery)
ZT310-R2 direction of the disc brake assembly (TFT/market/China IV)
ZT310-R1 front fork assembly (blue / black rim)
ZT310-R rear wheel assembly (blue / black / big plate)
ZT310-R frame/rubber parts/main cable assembly (China IV/gel battery)
ZT310 sliding clutch air intake system assembly (gel battery/lithium battery)
ZT310-R1 muffler assembly
ZT310 pedal assembly (improved)
ZT310 water cooling system assembly (sliding clutch)