High-Quality Steel Bike Headset Bearings - Durable MTB & Road Bike Replacement Parts for Smooth Cycling Performance - Perfect for Mountain Bikes, Commuting & Trail Riding

Feature: PREMIUM MATERIAL:The bearing is made of quality steel material, anti-rust, sturdy and durable.Options: 41mm; 41.8mm; 47mm; 49mm; 52mm,Size(Outer/Inner Diameter): Approx. 41/30mm; 41.8/30mm; 47/34.5mm; 49/38mm; 51/40mm; 52/41mm. ANTI-CORROSION: Built-in grease in the slot can prevent the balls from corrosion and make them rotate freely. SEALING RING:The sealing ring is good for keeping dust and water away to lengthen the durability.Fine machining ensures sleek surface and smooth rotation, fits perfectly with your bike headset PROFESSIONAL:Built-in grease in the slot can prevent the balls from corrosion and make them rotate freely GREAT ACCESSORIES: The bicycle bearings provide rigid support for the handlebars, it's an useful accessory for replacing old headset of bike Specification: Material: Steel Color: Shown as picture Options: 41mm; 41.8mm; 47mm; 49mm; 52mm Size(Outer/Inner Diameter): Approx. 41/30mm; 41.8/30mm; 47/34.5mm; 49/38mm; 51/40mm; 52/41mm Weight: Approx. 21-32g Suitable for most bikes, not applicable for bikes with ball headset Package List: 1 x Bike Headset Bearing