Check the listing for details. MH-P08H8 Headset Bearing, 30.15x41.x8mm, 45 Deg inner rad, 45 Deg outer 1 piece. Condition: New. Listed at 10.35 USD. MH-P08H8 Headset Bearing, 30.15x41.8x8mm, 45 Deg inner rad, 45 Deg outer 1 piece Chrome steel races and balls, nylon cages and rubber seals. Packed with grease. Orange seals. Angular contact bearings have a wear resistance advantage over deep groove types in heavily preloaded applications like bottom brackets and headsets. This type of bearing better supports the radial and axial or thrust loads from pedaling. Since the load is better supported the bearing is more efficient and lasts longer. (Remember that they are directional when installing, I will mark the insertion direction. Top tip: only drive the outer race to prevent internal damage) Our bearings feature beautifully ground chrome steel races which are harder and lower friction than stainless steel. Rubber seals are pliable with just the right amount of preload to keep dirt out and resistance low.This is the Headset Bearing 1-1/8" Upper Integrated Headset Bearing, Campy Style, 41.8 X 30.5 X 8mm Thick Acb 45X45. This is compatible with the following bikes: Specialized AllezSpecialized CruxSpecialized Levo FsrSpecialized Levo Fsr WmnSpecialized Levo HtSpecialized Levo Ht FatSpecialized Levo Ht WmnSpecialized Sj Fsr What some of our recent buyers are telling us about upgrading to our bearings: I just installed my new bearings; Wow, what a difference! Excellent upgrade! Great price! Thanks HubDoctor® Excellent service, fast shipping, great price, the best ceramic bearings on Ebay! Fast Shipping, Superb Quality, Purchase with confidence from this dude!! Kit includes sizes: MH-P08H8 30.15x41.8x8mm, 45 Deg inner rad, 45 Deg outer rad Please note the difference with MH-P03 and MH-P03K, MH-P08 is the slightly larger 41.8mm outer diameter and thickness. Weight is only 21 grams each! Free shipping in the USA! Check out our other items,Including our HubDoctor® Mavic® Freehubs Rebuild Kits The cost-saving solution for rebuilding Mavic® cassette hubs. See our other listings for the HubDoctor® Pro ceramic ball bearing freehub bushing replacement kit and our superior freehub replacement bushings! Don't be dissuaded by the our affordable prices! Check out our feedback!