1. Uni wheel rim.
2. Shock absorption: preventing the rebound no matter in rugged, bumpy, or rough roads and making your riding comfortable.
1. Size: 26"x1.5"~2.35" (559x18), 24"x1.5"~2.35" (507x18), 24"x1" (540x16), 24"x1 3/8" (540x16). 2. Material: aluminum magnesium alloy. 3. Assembly: bearing. 4. Front: 3/8x100x140 nut type. a. Rear: 3/8x130x180 6sp freewheel nut type. b. 3/8x135x185 7sp freewheel nut type. c. 3/8x135x185 8sp freewheel nut type. 5. Powder: coating red, yellow, blue, black, white / CNC.