{"id":24717,"date":"2026-07-31T19:48:33","date_gmt":"2026-07-31T19:48:33","guid":{"rendered":"https:\/\/mybikething.com\/home\/?post_type=product&#038;p=24717"},"modified":"2026-07-31T19:53:51","modified_gmt":"2026-07-31T19:53:51","slug":"specialized-mindset-headset-1-1-8-is41-drop-in-allez-comp-expander-plug","status":"publish","type":"product","link":"https:\/\/mybikething.com\/home\/product\/specialized-mindset-headset-1-1-8-is41-drop-in-allez-comp-expander-plug\/","title":{"rendered":"Specialized Mindset Headset | 1-1\/8 IS41 Drop-In | Allez Comp | Expander Plug"},"content":{"rendered":"<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><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 print:block print:space-y-1\" dir=\"ltr\">\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Fits IS41\/28.6 head tubes, 1-1\/8&#8243; straight steerer<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Drop-in cups, no headset press required<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Cups seat snugly in the IS41 bore<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">54 loose steel ball bearings included<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Cups, races, seals, washers, spacers included<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">OEM compression plug and top cap included<\/li>\n<\/ul>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>Condition<\/strong><\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">All components have been cleaned and are presented disassembled. Cups, races, and seals show black finish with light service wear. Ball bearings are bright steel throughout. Compression plug and top cap show clean alloy with light surface marks. plenty of miles 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\" dir=\"ltr\"><strong>Notes from MyBikeThing<\/strong><\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">Pulled from a 2005 Specialized Allez Comp frame during teardown, so this is an era-correct OEM set rather than a guess at a substitute. The Mindset is Specialized&#8217;s own proprietary design and it&#8217;s the single most frustrating part to source for a mid-2000s Specialized rebuild \u2014 dealers gate it and half the aftermarket cross-references are wrong. The cups seat tighter in the IS41 bore than generic drop-in cartridge bearings do, which is exactly why people who substitute aftermarket parts into these frames end up chasing creaks. The included compression plug matters too: carbon steerers can&#8217;t take a star nut, and a correct expander is another twenty dollars and a shipping wait.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>Workshop Wisdom<\/strong><\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">Loose-ball reassembly is easy if you let the grease do the work. Pack the race with a thick waterproof grease first, then press the balls down into it one at a time \u2014 they&#8217;ll stay put while you invert the fork and drop the crown into position. Count them as you go and split the total evenly between upper and lower races so both sides run the same. Snug the compression plug&#8217;s top cap only until the play disappears, then align the stem and torque the steerer clamp bolts. Those bolts hold the assembly; the top cap only sets preload.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>Guarantee<\/strong><\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">You put in the miles, we put in the work! 30-day Guarantee, rest assured of fit, function and condition.<\/p>\n<hr \/>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>Keywords<\/strong><\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">Specialized, Mindset, Mindset headset, OEM headset, integrated headset, IS41, IS41\/28.6, 1-1\/8, drop-in headset, loose ball headset, compression plug, expander plug, crown race, Allez, Allez Comp, 2005 Allez, Roubaix, Tricross, rebuild kit, proprietary headset<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Will this work? Fits IS41\/28.6 head tubes, 1-1\/8&#8243; straight steerer Drop-in cups, no headset press required Cups seat snugly in the IS41 bore 54 loose steel ball bearings included Cups, races, seals, washers, spacers included OEM compression plug and top cap included Condition All components have been cleaned and are presented disassembled. Cups, races, and [&hellip;]<\/p>\n","protected":false},"featured_media":24729,"template":"","meta":{"nf_dc_page":""},"product_brand":[],"product_cat":[175,291],"product_tag":[276,867,6837,633,6787,2979,5752,6836,2980,289,865,5447,5678,6835,6582,6832,6833,6834,6840,6839,6830,182,6838],"product_folder":[930],"class_list":["post-24717","product","type-product","status-publish","has-post-thumbnail","product_cat-c-road-bicycle-components","product_cat-road-bike-headsets","product_tag-1-1-8","product_tag-1-18-inch-hs","product_tag-2005-allez","product_tag-allez","product_tag-allez-comp","product_tag-compression-plug","product_tag-crown-race","product_tag-drop-in-headset","product_tag-expander-plug","product_tag-headset","product_tag-integrated","product_tag-integrated-headset","product_tag-is41","product_tag-is41-28-6","product_tag-loose-ball-headset","product_tag-mindset","product_tag-mindset-headset","product_tag-oem-headset","product_tag-proprietary-headset","product_tag-rebuild-kit","product_tag-roubaix","product_tag-specialized","product_tag-tricross","product_shipping_class-bike-components-1-lb","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product\/24717","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/media\/24729"}],"wp:attachment":[{"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/media?parent=24717"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_brand?post=24717"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_cat?post=24717"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_tag?post=24717"},{"taxonomy":"product_folder","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_folder?post=24717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}