Octane One Warp One TaperThe Warp Integrated Taper (Zero-Stack ID44/56) Two crown races included to fit both taper 1.5- 1 1/8” and standard 1 1/8” steertubes. Spec:-integrated headset, sealed bearings-Zero-Stack ID44/56-compatible with both taper 1.5 - 1 1/8” and standard 1 1/8” steertubes-7075 alloy crown-race with a cut for easy installation-Octane One spacers set included: 2mm, 3mm, 5mm, 8mm-weight: h-set: ~100g + spacer set: ~20g + star-nut: ~25g