-ZS44/ZS56 headset, sealed bearings
-compatible with both tapered 1.5 - 1 1/8” and standard 1 1/8” steer tubes
-7075 aluminum crown-race with a cut for easy installation
-Octane One spacers set included: 2mm, 3mm, 5mm, 8mm
-weight: h-set: 105g + spacer set: 20g + star-nut: 20g