ZOOM Suspension Seat Tube Mountain Bike Bicycle Hydraulic Seatpost, Caliber:31.6mm(Black Head)

Parameter:
1. Weight: 576 g
2. Caliber: 27.2 mm, 31.6 mm
3. Material: aluminum alloy
4. Length: 350 mm
5. Cushion locking method: double-nail floating type
Features:
1. Aluminum alloy forging, higher strength and hardness
2. The shock absorber system changes the riding comfort
3. The screw under the seat tube can finely adjust the stroke rebound speed
4. Beautiful and practical
5. Easy to install and use