1-1/8″ Heavy Duty Headset Top Cap Bearings, 34mm / 44mm / 55mm Diameter Threadless Stem Tapered Sealed BMX Bearing Nuts for Mountain MTB Bike

About this item Material: Forged machined steel cups and oversized 1/4 inch bearings in the lower cup, this headset will not let you downk. 1-1/8″ Threadless headset Completed with star nut and bolt. Specification: Use for 1-1/8″ (28.6mm) Straight Fork Tube, Headtube ID.: 34mm, Crown Race: 30mm Durable, smooth, lightweight and durable headset, is suitable for MTB, Road Bike. If not satisfied with the bike headset, please apply for unconditional return and refund within 180 days.