{"product_id":"shimano-caliper-fixing-bolt-rear","title":"Shimano Caliper Fixing Bolt (Rear)","description":"\u003cp data-path-to-node=\"2\"\u003e\u003cb data-path-to-node=\"2\" data-index-in-node=\"0\"\u003eFactory Thread Precision. Unyielding Caliper Alignment.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\"\u003e\u003cspan\u003eThe engineering hallmark of \u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bike.shimano.com\" class=\"ng-star-inserted\" target=\"_blank\"\u003eShimano Flat Mount Caliper Fixing Bolts\u003c\/a\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003cspan\u003e is their \u003c\/span\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"77\"\u003ecalibrated frame-thickness sizing paired with an integrated anti-loosening snap-ring channel\u003c\/b\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cspan\u003e Because rear flat mount calipers bolt upward through the chainstay directly into the caliper body (or flat mount adapter),\u003c\/span\u003e\u003cspan\u003e bolt length must match your frame’s exact chainstay thickness.\u003c\/span\u003e\u003cspan\u003e Shimano CNC-machines each high-tensile steel bolt with precise under-head seating washers and pre-applied micro-encapsulated threadlocker to prevent vibration-induced backing out,\u003c\/span\u003e\u003cspan\u003e ensuring perfectly centered rotor clearance and noise-free braking under heavy heat and torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003eWhy Genuine Shimano Fixing Bolts Belong on Your Build:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eFrame-Specific Length Calibration:\u003c\/b\u003e\u003cspan\u003e Offered in dedicated lengths (from 23mm up to 48mm under-head length) to match chainstay dropouts,\u003c\/span\u003e\u003cspan\u003e ensuring optimal thread engagement into the caliper body without bottoming out.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eIntegrated Snap-Ring Safety Groove:\u003c\/b\u003e\u003cspan\u003e Features a precision-cut groove beneath the head designed to accept Shimano’s anti-loosening safety clip,\u003c\/span\u003e\u003cspan\u003e preventing the bolt from backing out under rough gravel chatter or high-heat vibration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003ePre-Applied Factory Threadlocker:\u003c\/b\u003e\u003cspan\u003e Coated with Shimano’s micro-encapsulated threadlock compound to create a secure,\u003c\/span\u003e\u003cspan\u003e vibration-resistant bond right out of the packaging without contaminating hydraulic bleed ports.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\"\u003e\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"0\"\u003eHigh-Tensile Heat-Treated Steel:\u003c\/b\u003e\u003cspan\u003e Resists head stripping,\u003c\/span\u003e\u003cspan\u003e thread galling,\u003c\/span\u003e\u003cspan\u003e and lateral shearing when torqued to Shimano's recommended 6–8 N·m specification.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,4,0\"\u003e\u003cb data-path-to-node=\"5,4,0\" data-index-in-node=\"0\"\u003ePrecision Flat-Seating Washers:\u003c\/b\u003e\u003cspan\u003e Includes dedicated conical\/flat friction washers to distribute clamping force evenly against carbon and alloy frame dropouts,\u003c\/span\u003e\u003cspan\u003e protecting delicate frame paint and carbon layups.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,5,0\"\u003e\u003cb data-path-to-node=\"5,5,0\" data-index-in-node=\"0\"\u003eUniversal Shimano Caliper Compatibility:\u003c\/b\u003e\u003cspan\u003e Direct OEM fit for all Shimano road and gravel flat mount calipers across Dura-Ace,\u003c\/span\u003e\u003cspan\u003e Ultegra,\u003c\/span\u003e\u003cspan\u003e 105,\u003c\/span\u003e\u003cspan\u003e GRX,\u003c\/span\u003e\u003cspan\u003e and Tiagra series.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eInterface:\u003c\/b\u003e\u003cspan\u003e Flat Mount Rear (Chainstay-to-Caliper Mounting)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003eDrive Interface:\u003c\/b\u003e\u003cspan\u003e 4mm Hex (Allen Key)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eThread Pitch:\u003c\/b\u003e\u003cspan\u003e M5 x 0.\u003c\/span\u003e\u003cspan\u003e8 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,4,0\"\u003e\u003cb data-path-to-node=\"7,4,0\" data-index-in-node=\"0\"\u003eMaterial:\u003c\/b\u003e\u003cspan\u003e High-Tensile Heat-Treated Steel w\/ Anti-Corrosion Black Oxide Coating\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,5,0\"\u003e\u003cb data-path-to-node=\"7,5,0\" data-index-in-node=\"0\"\u003eHardware Included:\u003c\/b\u003e\u003cspan\u003e Bolt,\u003c\/span\u003e\u003cspan\u003e Friction Washer,\u003c\/span\u003e\u003cspan\u003e and Anti-Loosen Snap-Ring Clip\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,6,0\"\u003e\u003cb data-path-to-node=\"7,6,0\" data-index-in-node=\"0\"\u003eTorque Spec:\u003c\/b\u003e\u003cspan\u003e 6.\u003c\/span\u003e\u003cspan\u003e0 – 8.\u003c\/span\u003e\u003cspan\u003e0 N·m\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"9\"\u003e \u003c\/p\u003e\n\u003cp data-path-to-node=\"9,0\"\u003e\u003cb data-path-to-node=\"9,0\" data-index-in-node=\"0\"\u003eThe Alegro Perspective:\u003c\/b\u003e Bolts are one of the most overlooked details on custom builds and frame swaps. If a bolt is just 2 mm too long, it bottoms out inside the caliper body before fully clamping, leaving the brake loose and rattling. If it’s too short, you risk stripping the delicate aluminum threads out of a $100+ caliper under heavy panic braking. We always insist on using genuine Shimano bolts with the factory snap rings: they give you exact thread depth, protect your carbon chainstays from clamping damage, and ensure your caliper stays dead-center no matter how rough the road gets.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eFactory Thread Engagement. Absolute Caliper Security. Build with Precision Using Shimano.\u003c\/b\u003e\u003c\/p\u003e","brand":"Shimano","offers":[{"title":"23mm","offer_id":68349453009119,"sku":null,"price":10.0,"currency_code":"CAD","in_stock":false},{"title":"28mm","offer_id":68349453041887,"sku":"Y8N208050","price":10.0,"currency_code":"CAD","in_stock":false},{"title":"33mm","offer_id":68349453074655,"sku":null,"price":10.0,"currency_code":"CAD","in_stock":false},{"title":"38mm","offer_id":68349453107423,"sku":null,"price":10.0,"currency_code":"CAD","in_stock":false},{"title":"43mm","offer_id":68349453140191,"sku":null,"price":10.0,"currency_code":"CAD","in_stock":false},{"title":"48mm","offer_id":68349453172959,"sku":null,"price":10.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/5452\/3103\/files\/fad3c32ca8876da0335be5603ead60d61ef35eb5.png?v=1793384968","url":"https:\/\/alegrocycles.com\/products\/shimano-caliper-fixing-bolt-rear","provider":"Alegro Cycles","version":"1.0","type":"link"}