It's suitable for bow shaped cushions.
Bike Seat Post Clamp Lightweight Alloy MTB Seat Tube Bicycle ClipRoad Bike Clamp
Adjustable MTB Seat Tube Road Bike Seatpost MTB Accessories
Quick Release Bike Seatpost Clamp Lever Universal MTB Seat Tube
Silicone Seatpost Gasket for Flat Road Bike, Waterproof Sealing Ring & Dust Cover, Anti-Rattle Insert Shim for Bicycle Frame Protection, MTB Seat Tube Seal, Black, 5-Pack
MTB Seat Tube Aluminum Alloy Rear Floating Rod 27.2/30.9/31.6MM Diameter 40CM
25.4*300m m Fixed Gear Bike Seatpost MTB Seat Tube Horizontal Bicycle Seatpost
