{"id":24695,"date":"2026-07-24T19:21:05","date_gmt":"2026-07-24T19:21:05","guid":{"rendered":"https:\/\/mybikething.com\/home\/?post_type=product&#038;p=24695"},"modified":"2026-07-24T20:03:55","modified_gmt":"2026-07-24T20:03:55","slug":"shimano-sm-cs50-downtube-cable-stops-braze-on-boss-sti-conversion-pair-ex","status":"publish","type":"product","link":"https:\/\/mybikething.com\/home\/product\/shimano-sm-cs50-downtube-cable-stops-braze-on-boss-sti-conversion-pair-ex\/","title":{"rendered":"Shimano SM-CS50 Downtube Cable Stops | Braze-On Boss STI Conversion | Pair | EX"},"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\">Converts downtube shifter bosses to cable stops<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Works with STI, Ergo, bar-end, thumb shifters<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Fits standard braze-on downtube shifter bosses<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Concave base for round 1-1\/8&#8243; to 1-1\/4&#8243; downtubes<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Built-in barrel adjusters for cable tension<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Pair, left and right, mounting bolts 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\">Excellent &#8211; includes bolts<\/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\">This is the single most useful $20 part in vintage road conversions. Old frame, downtube bosses, and you want brifters or bar-cons \u2014 these bolt straight onto the existing bosses and give you proper housing stops with barrel adjusters right where you can reach them.<\/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\">Grease everything before these go on<\/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<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\">Shimano, SM-CS50, CS50, downtube cable stops, cable stop adjusters, braze-on, shifter boss, STI conversion, brifter conversion, bar end shifters, barrel adjuster, vintage road bike, steel frame, retro conversion, housing stop, Y67B91000, 67B-9100<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Will this work? Converts downtube shifter bosses to cable stops Works with STI, Ergo, bar-end, thumb shifters Fits standard braze-on downtube shifter bosses Concave base for round 1-1\/8&#8243; to 1-1\/4&#8243; downtubes Built-in barrel adjusters for cable tension Pair, left and right, mounting bolts included Condition Excellent &#8211; includes bolts Notes from MyBikeThing This is the [&hellip;]<\/p>\n","protected":false},"featured_media":24699,"template":"","meta":{"nf_dc_page":""},"product_brand":[],"product_cat":[175,228],"product_tag":[2570,2778,2777,2775,2437,821,2779,2780,70,813,6817,2776],"product_folder":[930],"class_list":["post-24695","product","type-product","status-publish","has-post-thumbnail","product_cat-c-road-bicycle-components","product_cat-road-bike-shifters","product_tag-bicycle-components","product_tag-bicycle-repair","product_tag-bike-maintenance","product_tag-cable-stops","product_tag-cycling-equipment","product_tag-down-tube-shifters","product_tag-drivetrain-parts","product_tag-frame-modification","product_tag-shimano","product_tag-shimano-shifters","product_tag-sm-cs50","product_tag-vintage-parts","product_shipping_class-bike-components-1lb","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product\/24695","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\/24699"}],"wp:attachment":[{"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/media?parent=24695"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_brand?post=24695"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_cat?post=24695"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_tag?post=24695"},{"taxonomy":"product_folder","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_folder?post=24695"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}