{"id":24631,"date":"2026-07-16T22:14:27","date_gmt":"2026-07-16T22:14:27","guid":{"rendered":"https:\/\/mybikething.com\/home\/?post_type=product&#038;p=24631"},"modified":"2026-07-16T22:18:53","modified_gmt":"2026-07-16T22:18:53","slug":"shimano-dura-ace-cs-7800-cassette-12-27t-10-speed-titanium-steel-road-ex","status":"publish","type":"product","link":"https:\/\/mybikething.com\/home\/product\/shimano-dura-ace-cs-7800-cassette-12-27t-10-speed-titanium-steel-road-ex\/","title":{"rendered":"Shimano Dura-Ace CS-7800 Cassette | 12-27T 10 Speed Titanium Steel Road | EX"},"content":{"rendered":"<p class=\"font-claude-response-body break-words whitespace-normal\"><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=\"font-claude-response-body whitespace-normal break-words pl-2\">Shimano Dura-Ace CS-7800 cassette<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">12-27T, complete with lockring<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">10-speed, Shimano\/SRAM 10s compatible<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Largest three cogs titanium on alloy carriers<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Smaller cogs steel<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Fits standard Shimano HG freehub<\/li>\n<\/ul>\n<p class=\"font-claude-response-body break-words whitespace-normal\"><strong>Condition<\/strong><br \/>\nExcellent used condition. Titanium cogs show minimal wear \u2014 Ti at this thickness outlasts steel \u2014 and the smaller steel cogs show little to no wear. Teeth are sharp and uniform across the stack. More than enough 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\"><strong>Notes from MyBikeThing<\/strong><br \/>\nTop of the line when 10-speed ruled the pro peloton \u2014 titanium big cogs on alloy spiders keep weight down where cassettes get heavy, and 12-27 is the ratio everyone actually wants: enough top end with real climbing gears. Japan-made and built to last.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\"><strong>Workshop Wisdom<\/strong><br \/>\nTorque the lockring to the full 40Nm marked on it \u2014 an under-torqued lockring lets cogs shift microscopically under load, which chews the freehub splines long before it makes noise.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\"><strong>Guarantee<\/strong><br \/>\nYou put in the miles, we put in the work! 30-day Guarantee, rest assured of fit, function and condition \ud83d\ude42<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\"><strong>Keywords<\/strong><br \/>\nDura-Ace CS-7800, 12-27 cassette, 10 speed cassette, titanium cassette, Shimano Dura Ace, road cassette, DA 7800, climbing cassette, HG cassette, 10s road, Japan Shimano<\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>Checklist<\/strong>:<\/p>\n<ul>\n<li>Compatibility: <strong>Shimano, SRAM, Campagnolo, 8\/9\/10 Speed hubs<\/strong><\/li>\n<li># Gears:\u00a0 #<strong> 11 | 10 | 9 | 8 | 7 | 6 | 5 Speed<\/strong><\/li>\n<\/ul>\n","protected":false},"featured_media":24633,"template":"","meta":{"nf_dc_page":""},"product_brand":[],"product_cat":[251,175],"product_tag":[3929,6785,6781,789,250,812,6784,6783,6780,6428,6786,4299,2934,880,6782],"product_folder":[930],"class_list":["post-24631","product","type-product","status-publish","has-post-thumbnail","product_cat-road-bike-cassettes","product_cat-c-road-bicycle-components","product_tag-10-speed-cassette","product_tag-10s-road","product_tag-12-27-cassette","product_tag-cassette","product_tag-cassettes","product_tag-chain-10speed","product_tag-climbing-cassette","product_tag-da-7800","product_tag-dura-ace-cs-7800","product_tag-hg-cassette","product_tag-japan-shimano","product_tag-road-cassette","product_tag-shimano-dura-ace","product_tag-shimano-cassettes","product_tag-titanium-cassette","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\/24631","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\/24633"}],"wp:attachment":[{"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/media?parent=24631"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_brand?post=24631"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_cat?post=24631"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_tag?post=24631"},{"taxonomy":"product_folder","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_folder?post=24631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}