Upgraded thickened bumper, fixed backrest, upgraded fixed backrest + rear shelf [shelf can bear 180 pounds], plastic steel folding backrest, plastic steel folding backrest + rear shelf [shelf can bear 180 pounds], aluminum alloy folding backrest, aluminum alloy folding backrest + rear shelf [shelf can bear 180 pounds], a pair of classic retro side bags [with anti-theft lock + water cup holder]





