Enduro HDK-0012 Drop-In Headset Kit - IS42/28.6 Upper | IS52/40 Lower 45x45 Angular Contact Bearings Tapered BLK MFPN=1000-001 100mm Polyurethane wheel available in

100mm Polyurethane wheel available in speed 2 only

2020 and newer SID Boost forks use the 100mm/Standard axle

Easy to install using existing cage mounts on a bike

Misc Titan Primary Color Grey Size L Helmet sizing in cm 56 - 61cm e-Bike approved No Integrated Light Yes Visor Yes Certification CPSC

Enduro HDK-0012 Drop-In Headset Kit - IS42/28.6 Upper | IS52/40 Lower 45x45 Angular Contact Bearings Tapered BLK MFPN=1000-001 100mm Polyurethane wheel available inEnduro 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 45x45 Stack Color Silver Black Weight