1Appearance And Performance: Automatic cutting, smooth edge, fit most of the road bicycles, delicate texture and durable to use.2Aluminum Alloy: Made of aluminum alloy material, bicycle headset spacer has nice look, light weight, good strength and well temperature resistance, good impact resistance.3Stable: The bicycle headset spacers with threadless design is stable and not easy to fall off, which can be applied for a long time.4Easy to Install: Lightweight and easy to install, having advantages of smooth surface and exquisite workmanship.5Fits Perfectly: Suitable for 28.6mm outer diameter forks. The bicycle headset spacer is suitable for most of road bikes, mountain bikes, folding bikes, etc.5 x Bike Headset Spacer