{"id":23979,"date":"2026-05-20T22:39:39","date_gmt":"2026-05-20T22:39:39","guid":{"rendered":"https:\/\/mybikething.com\/home\/?post_type=product&#038;p=23979"},"modified":"2026-05-20T22:40:11","modified_gmt":"2026-05-20T22:40:11","slug":"shimano-dura-ace-bb-r9100-bottom-bracket-36-x-24-italian-hollowtech-ii-70mm","status":"publish","type":"product","link":"https:\/\/mybikething.com\/home\/product\/shimano-dura-ace-bb-r9100-bottom-bracket-36-x-24-italian-hollowtech-ii-70mm\/","title":{"rendered":"Shimano Dura-Ace BB-R9100 Bottom Bracket | 36 x 24 Italian | Hollowtech II | 70mm"},"content":{"rendered":"<p><strong>Will this work?<\/strong><\/p>\n<ul>\n<li>Italian threaded shell only \u2014 36x24mm ITA, 70mm shell width<\/li>\n<li>Compatible with all Shimano Hollowtech II cranksets with 24mm spindle \u2014 Dura-Ace 9100\/9000, Ultegra R8000\/6800\/6700, 105 R7000\/5800\/5700 and others<\/li>\n<li>Both cups are right-hand thread \u2014 no reverse threading on Italian BBs<\/li>\n<li>Includes both cups and sealing sleeve<\/li>\n<\/ul>\n<p><strong>Condition:<\/strong> Very good. Black anodized cups show mild scuffs. Italian threads clean with no damage. Bearings spin smoothly with no play or roughness.<\/p>\n<hr \/>\n<p><strong>Notes from MyBikeThing<\/strong> \u2014 The BB-R9100 is Dura-Ace level Hollowtech II \u2014 lightweight aluminum cups, sealed bearings, made in Japan, and compatible with the full range of modern Shimano 24mm Hollowtech II cranks. Italian thread BBs at this quality level are a specific find \u2014 if you&#8217;re running a Pinarello, Bianchi, Colnago, or other Italian-thread frame with a Shimano Hollowtech II crankset, this is exactly what you need.<\/p>\n<p><strong>Workshop Wisdom<\/strong> \u2014 Italian thread: both cups are right-hand thread, no reverse threading. Arrows on the cups indicate tightening direction \u2014 follow them. Standard Shimano BB tool for installation. Grease cup threads, torque to 35\u201350Nm. Adjust left crank arm preload before tightening the pinch bolts.<\/p>\n<p><strong>Guarantee<\/strong> \u2014 You put in the miles, we put in the work. 30-day guarantee on fit, function, and condition. \u2013 Paul<\/p>\n<p><strong>Keywords<\/strong> \u2014 Shimano BB-R9100, Dura-Ace bottom bracket, Hollowtech II, Italian thread, 36&#215;24 ITA, 70mm shell, road bottom bracket, Italian frame BB, Pinarello BB, Bianchi BB, Colnago BB, 24mm spindle, Japan<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Will this work? Italian threaded shell only \u2014 36x24mm ITA, 70mm shell width Compatible with all Shimano Hollowtech II cranksets with 24mm spindle \u2014 Dura-Ace 9100\/9000, Ultegra R8000\/6800\/6700, 105 R7000\/5800\/5700 and others Both cups are right-hand thread \u2014 no reverse threading on Italian BBs Includes both cups and sealing sleeve Condition: Very good. Black anodized [&hellip;]<\/p>\n","protected":false},"featured_media":21159,"template":"","meta":{"nf_dc_page":""},"product_brand":[],"product_cat":[269,175],"product_tag":[365,933,266,4399,4400,385,205,207,4401,208,1529,320,3221,3338,279,2754,70,322],"product_folder":[930],"class_list":{"0":"post-23979","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-road-bike-bb","7":"product_cat-c-road-bicycle-components","8":"product_tag-36x24","9":"product_tag-68mm","10":"product_tag-bb","11":"product_tag-bb-r9100","12":"product_tag-bearings","13":"product_tag-bottom-bracket","14":"product_tag-crankset","15":"product_tag-dura-ace","16":"product_tag-flagship","17":"product_tag-hollowtech","18":"product_tag-hollowtech-ii","19":"product_tag-italian","20":"product_tag-japanese","21":"product_tag-performance","22":"product_tag-road-bike","23":"product_tag-sealed-cartridge","24":"product_tag-shimano","25":"product_tag-threaded","26":"product_shipping_class-bike-components-1-lb","28":"first","29":"instock","30":"taxable","31":"shipping-taxable","32":"purchasable","33":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product\/23979","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\/21159"}],"wp:attachment":[{"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/media?parent=23979"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_brand?post=23979"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_cat?post=23979"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_tag?post=23979"},{"taxonomy":"product_folder","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_folder?post=23979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}