31.8/34.9 mm Aluminum Alloy Bicycle Seatpost Clamp Seat Tube Clamp MTB Bike Seat Tube Clip Bike Parts Bike Saddle Seat

31.8/34.9 mm Aluminum Alloy Bicycle Seatpost Clamp Seat Tube Clamp MTB Bike Seat Tube Clip Bike Parts Bike Saddle Seat

Aliexpress UK