Bolt face plate helps distribute clamping load on lightweight handlebars Angled steerer tube clamp spreads clamping zone out on steerer and is carbon friendly Opposing dual steerer clamp bolts are strategically positioned near the center of the clamp, evenly distributing clamping forces Forged 6061-T6 aluminum body and faceplate 31.8mm Oversize bar clamp 1'1/8" steerer tubeApproximate weight : 118g