✅【28.6 CLAMP】28.6mm Bicycle Quick Release seat clamp is suitable for 27.2mm bicycle seatposts
✅【25.4 CLAMP】25.4mm Bike Quick Release seat holder is compatible with 22.2mm bike seat tubes
✅【INSTALLATION】Simply secure with a 4mm Allen (hex) head key, the seat post clamp fits for most aluminum frame bikes, like mountain bike, road bike, etc
✅【MATERIAL】The bicycle seatpost clamp is made of high-quality aluminum alloy, with a smooth and exquisite appearance, anti-wear and practical
✅【NOTE】This bicycle seatpost clamp should match the diameter of the seat tube on your frame and not the diameter of the seatpost itself