{"id":24023,"date":"2026-06-01T00:01:37","date_gmt":"2026-06-01T00:01:37","guid":{"rendered":"https:\/\/mybikething.com\/home\/?post_type=product&#038;p=24023"},"modified":"2026-06-01T00:05:03","modified_gmt":"2026-06-01T00:05:03","slug":"shimano-ultegra-fd-6503-triple-front-derailleur-31-8mm-9-speed-road","status":"publish","type":"product","link":"https:\/\/mybikething.com\/home\/product\/shimano-ultegra-fd-6503-triple-front-derailleur-31-8mm-9-speed-road\/","title":{"rendered":"Shimano Ultegra FD-6503 Triple Front Derailleur | 31.8mm | 9-Speed | Road"},"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=\"font-claude-response-body whitespace-normal break-words pl-2\">Shimano Ultegra 9-speed triple front derailleur<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">31.8mm clamp-on mount \u2014 fits modern road and touring frames<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Bottom pull cable routing \u2014 confirm frame routing before ordering<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Compatible with 8, 9, and 10-speed Shimano STI drivetrains<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Max chainring: 52t outer<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">All hardware included, ready to install<\/li>\n<\/ul>\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>Condition:<\/strong> Very good plus. Light scuffs from light use only. Logo is clean and clear. Cage and springs are tight.<\/p>\n<hr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\" \/>\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> The FD-6503 is the go-to Ultegra triple front derailleur for 9-speed road and touring builds \u2014 and increasingly hard to find in this kind of shape. Ultegra-grade construction with clean shifting action. Whether you&#8217;re restoring a period-correct triple build or converting a double, this is the correct part to reach for.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Workshop Wisdom:<\/strong> Triple front derailleurs are more sensitive to cage height than doubles \u2014 set the outer cage plate 1\u20133mm above the largest chainring teeth before setting limit screws. Too high and shifts will be slow; too low and you&#8217;ll get cage strikes. Get the height dialed first, then limit screws, then cable tension.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"><strong>Guarantee:<\/strong> <em>You put in the miles, we put in the work! 30-day Guarantee, rest assured of fit, function and condition.<\/em> \ud83d\ude42<\/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>Keywords:<\/strong> Shimano Ultegra, FD-6503, triple front derailleur, 31.8mm, bottom pull, 9-speed, road triple, touring bike, clamp-on, 6500 series, 3&#215;9<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Will this work? Shimano Ultegra 9-speed triple front derailleur 31.8mm clamp-on mount \u2014 fits modern road and touring frames Bottom pull cable routing \u2014 confirm frame routing before ordering Compatible with 8, 9, and 10-speed Shimano STI drivetrains Max chainring: 52t outer All hardware included, ready to install Condition: Very good plus. Light scuffs from [&hellip;]<\/p>\n","protected":false},"featured_media":24025,"template":"","meta":{"nf_dc_page":""},"product_brand":[],"product_cat":[175,235],"product_tag":[991,1246,2738,221,802,4251,232,712,804,807,800,718,6397,2499,1904,2583],"product_folder":[930],"class_list":["post-24023","product","type-product","status-publish","has-post-thumbnail","product_cat-c-road-bicycle-components","product_cat-road-bike-front-derailleurs","product_tag-31-8mm","product_tag-3x9","product_tag-6500-series","product_tag-9-speed","product_tag-bottom-pull","product_tag-clamp-on","product_tag-derailleur","product_tag-fd-6503","product_tag-fd-9","product_tag-fd-clamp","product_tag-fd-triple","product_tag-front-derailleurs","product_tag-road-triple","product_tag-shimano-ultegra","product_tag-touring-bike","product_tag-triple-front-derailleur","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\/24023","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\/24025"}],"wp:attachment":[{"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/media?parent=24023"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_brand?post=24023"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_cat?post=24023"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_tag?post=24023"},{"taxonomy":"product_folder","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_folder?post=24023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}