Bicycle Seat Rod Tube Saddle Shock Absorption Air Pressure Lift $ 19.64 Product Information: Specification: 27.2mm 30.9mm 31.6mm (diameter) 350mm (length) other calibers The conversion must be carried out by a reducing sleeve! Product features: The new shock absorber system changes the ride comfort. ZOOM's new shock-absorbing seat tube adopts internal shock-absorbing method, and the outer tube material is made of high-strength aerospace material. The Screw under the seat tube can fine-tune the stroke and rebound speed to make the seat tube more comfortable to ride. Packing list: Bicycle sitting pole x1
