HDK-0011 - IS 42/52 36x45 Drop-In headset kit TH-873 CT-003 - Rotor Crankset Lockring

CT-003 - Rotor Crankset Lockring Tool

HDK-0012 - IS42 (36º) / IS52 (45º) Drop-In headset kit

Static load - 825lbf / 3

Comes with it's own molded protective plastic case

HDK-0011 - IS 42/52 36x45 Drop-In headset kit TH-873 CT-003 - Rotor Crankset LockringHDK 0011 IS 42 52 36x45 Drop In headset kit This IS42 IS52 integrated drop in headset fits bikes with head tubes with 42mm top IDs and 52mm bottom IDs, bearings with 36 45 chamfers, and tapered (1. 125" x 1. 5) steerer forks. Includes 440C stainless steel upper and lower bearings, upper bearing cap, hidden bolt topcap preload adjuster, with 36 crown race and compression ring. Enduro stainless headsets always feature top quality 440C balls and races,