Easily folds. Multiple speeds. Shocks. 1. The frame material is high-carbon steel 26-inch frame. 2. The horizontal aluminum alloy four-nail handlebar, one-word iron handle, horizontal 3. The handle set aluminum alloy horn handle 4. The front fork, black shoulder and bright legs, shock-absorbing front fork 5. Rear After dial 50, dial 30, front dial imitation Shimano 1:1 6. Finger dial 30 imitation Shimano 1:1 7. Rim aluminum alloy double-layer thickened rim 8. Half alloy pedal 9. Flywheel 21 speed 7 pieces of telling flywheel 10. Chain positioning chain 11. Brake: Tolan high-efficiency disc brake 12. Crankset high speed chainring with protective chain 13. Bottom axle 5S botto