{"id":22969,"date":"2026-02-09T21:12:45","date_gmt":"2026-02-09T21:12:45","guid":{"rendered":"https:\/\/mybikething.com\/home\/?post_type=product&#038;p=22969"},"modified":"2026-02-09T21:17:41","modified_gmt":"2026-02-09T21:17:41","slug":"fsa-th-873-headset-bearings-1-1-8-acb-36x45-pair-road-mtb-used","status":"publish","type":"product","link":"https:\/\/mybikething.com\/home\/product\/fsa-th-873-headset-bearings-1-1-8-acb-36x45-pair-road-mtb-used\/","title":{"rendered":"FSA TH-873 Headset Bearings 1-1\/8&#8243; ACB 36\u00b0x45\u00b0 Pair | Road MTB | Used"},"content":{"rendered":"<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Will this work?<\/strong><\/p>\n<ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\">\n<li class=\"whitespace-normal break-words pl-2\">FSA\/TH Industries TH-873 headset bearings, pair<\/li>\n<li class=\"whitespace-normal break-words pl-2\">1-1\/8&#8243; threadless, ACB 36\u00b0x45\u00b0<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Dimensions: 30.2mm ID x 41mm OD x 6.5mm<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Fits most 1-1\/8&#8243; integrated\/semi-integrated headsets<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Compatible with IS41 headtube standard<\/li>\n<li class=\"whitespace-normal break-words pl-2\">Includes: two (2) bearings<\/li>\n<\/ul>\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Condition:<\/strong> Used, pulled from an FSA headset. Bearings are in excellent shape \u2014 seals are intact, no play or roughness. Smooth spin with no grit. Plenty of life left.<\/p>\n<hr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\" \/>\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Notes from MyBikeThing:<\/strong> These are the most common 1-1\/8&#8243; headset bearings out there. If your steering feels notchy or gritty, fresh bearings make a huge difference for a few bucks. TH-873 fits FSA Orbit, No.57, and dozens of other headsets using the IS41 standard. Swap takes five minutes with a headset press \u2014 or just drop them in by hand on most integrated setups.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>You put in the miles, we put in the work! 30 day Guarantee, rest assured of fit, function and condition \ud83d\ude42<\/strong><\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Keywords:<\/strong> FSA headset bearing, TH-873, TH Industries, 1-1\/8 headset bearing, ACB 36&#215;45, MR122, MR040, 41mm headset bearing, integrated headset bearing, IS41, threadless headset, road bike, MTB, replacement headset bearing, FSA Orbit<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Will this work? FSA\/TH Industries TH-873 headset bearings, pair 1-1\/8&#8243; threadless, ACB 36\u00b0x45\u00b0 Dimensions: 30.2mm ID x 41mm OD x 6.5mm Fits most 1-1\/8&#8243; integrated\/semi-integrated headsets Compatible with IS41 headtube standard Includes: two (2) bearings Condition: Used, pulled from an FSA headset. Bearings are in excellent shape \u2014 seals are intact, no play or roughness. 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