Enduro IS42/IS52/40 36x45 Deg. Drop In Headset - Fits 1.5" Tapered Steerer

This IS42/IS52 Integrated/Drop-in headset fits bike head tubes with 42mm top IDs and 52mm bottom IDs, bearings with 36°/45° chamfers, and tapered (1-1/8" x 1-1/2”) steerer forks
Features 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
Upper 1-1/8” bearing ACB 3645 1125 SS (also known as IS42, ACB30418K, and MH-P03K) with 30.5mm ID, 41.8mm OD that features a step down to just under 41mm at the top of the outer race, and a width of 6.3mm
Lower 1-1/2" bearing ACB 6808 SS (also known as HD 1404K, BAA0006K, MR-127, MR-196, MH-P25K, BAA1132, and TH MR019) with a 40mm ID, 52mm OD and a width of 6.5mm
Kit includes upper bearing cap, hidden bolt topcap preload adjuster, with 36° crown race and compression ring
Model: HDK-0011, 36x45
S.H.I.S.: IS42/28.6|IS52/40
Stack: 6.5mm/1mm
Weight: 74g.
Color: Silver/Black

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.