All-inside headsetIntegrated headset for 1 1/8 inch - 1 1/2 inch diameter tapered steerer tubes on frames with 1.5 inch head tube.Features: Fully integrated cable routing (ACR compatible)Specific frame required for 1.5 inch head tubeSteerer: Tapered 1 1/8 inch - 1.5 inchBearings: Angular Contact BearingsMaterial: Top Cover: AluminumBearings: Stainless SteelCone: AluminumApplicable: Suitable for upper and outer front forks with a diameter of 28.6mm (suitable for aluminum alloy, steel, titanium alloy and carbon fiber)Process: diamond knurling, T6 heat treatmentInstallation: No. 5 and No. 6 Hex keysColor: Black+SilverPackage Contents:1 x Bike Headset spacer setOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.