{"id":23990,"date":"2026-05-28T20:53:05","date_gmt":"2026-05-28T20:53:05","guid":{"rendered":"https:\/\/mybikething.com\/home\/?post_type=product&#038;p=23990"},"modified":"2026-05-28T20:53:36","modified_gmt":"2026-05-28T20:53:36","slug":"shimano-600-ultegra-br-6403-brakeset-side-pull-calipers-road-bike","status":"publish","type":"product","link":"https:\/\/mybikething.com\/home\/product\/shimano-600-ultegra-br-6403-brakeset-side-pull-calipers-road-bike\/","title":{"rendered":"Shimano 600 Ultegra BR-6403 Brakeset | Side Pull Calipers | Road Bike"},"content":{"rendered":"<p><strong>Will this work?<\/strong><\/p>\n<ul>\n<li>Dual pivot side pull caliper \u2014 standard road rim brake, not cantilever or direct mount<\/li>\n<li>Standard reach \u2014 fits rims with 39\u201349mm brake reach<\/li>\n<li>Compatible with standard road brake cable pull \u2014 Shimano, Campagnolo, or any standard brake lever<\/li>\n<li>Front and rear calipers included<\/li>\n<li>Includes fixing nuts, washers, cable barrels, and cable locks<\/li>\n<\/ul>\n<p><strong>Condition:<\/strong> Excellent. Light signs of use only. Brake pads in excellent condition with low wear. All hardware present and complete as pictured.<\/p>\n<hr \/>\n<p><strong>Notes from MyBikeThing<\/strong> \u2014 The BR-6403 is the tricolor generation of Shimano 600 Ultegra \u2014 the era when Shimano repositioned its mid-range as a genuine racing component alongside Dura-Ace. Dual pivot side pull design, gray pewter finish with the iconic tricolor stripe, made in Japan. These are the brakes that belong on a period-correct late 80s or early 90s road build and they&#8217;re increasingly hard to find in this condition. A complete, functional set ready to install.<\/p>\n<p><strong>Workshop Wisdom<\/strong> \u2014 Standard road caliper installation: front bolt threads into a recessed nut behind the fork crown, rear into the brake bridge. Torque fixing bolt to 6\u20138Nm. Center the caliper over the rim before final tightening \u2014 use the centering adjustment screw on the caliper body to fine tune pad contact. Pad toe-in of 1\u20132mm at the rear improves modulation and reduces squeal.<\/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 600 Ultegra BR-6403, brakeset, dual pivot, side pull caliper, road bike brakes, tricolor, vintage Shimano, Japan, 39-49mm reach, 6400 series, retro road bike brakes, rim brakes<\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>Checklist:<\/strong><\/p>\n<ul>\n<li>Type : <strong>Dual pivot side pull caliper rim brake<\/strong><\/li>\n<li>Quick release:\u00a0 <strong>Yes<\/strong><\/li>\n<\/ul>\n","protected":false},"featured_media":15945,"template":"","meta":{"nf_dc_page":""},"product_brand":[],"product_cat":[247,175],"product_tag":[1466,246,1196,1759,1382,249],"product_folder":[],"class_list":["post-23990","product","type-product","status-publish","has-post-thumbnail","product_cat-road-bike-brakes","product_cat-c-road-bicycle-components","product_tag-barrels","product_tag-brakes","product_tag-pads","product_tag-rim-cantilevers","product_tag-shimano-600-ultegra-br-6403-brakeset","product_tag-side-pull","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\/23990","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\/15945"}],"wp:attachment":[{"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/media?parent=23990"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_brand?post=23990"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_cat?post=23990"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_tag?post=23990"},{"taxonomy":"product_folder","embeddable":true,"href":"https:\/\/mybikething.com\/home\/wp-json\/wp\/v2\/product_folder?post=23990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}