Enduro HDK-0011 Drop-In Headset Kit - IS42/28.6 Upper | IS52/40 Lower 36x45 Angular Contact Bearings Tapered BLKEnduro stainless headsets always feature top quality 440C balls and races, dual lip seals top and bottom, 90% fill with high pressure waterproof grease, and are guaranteed for as long as you own the bike Includes 440C stainless steel upper and lower bearings, upper bearing cap, hidden bolt topcap preload adjuster, with 36 crown race and compression ring Model Drop In S. H. I. S IS 42 52 36x45 Stack Color Silver Black Weight