ZT250-S aluminum alloy rear fork assembly
ZT250-S upgraded chain regulator assembly
ZT310 external rear shock absorber with air bag/rear inner mudguard assembly
ZT310－R Sproket wheel seat/buffer rubber assy
ABS9 anti-lock system gear ring assembly (rear wheel)
ZT310-R rear wheel parts（black）
ZT310 built-in rear shock absorber with air bag/rear inner mudguard assembly