{"product_id":"wolf-tooth-disc-brake-adapter-post-mount-to-flat-mount-20mm","title":"Wolf Tooth Disc Brake Adapter – Post Mount to Flat Mount – +20mm","description":"\u003cp data-start=\"96\" data-end=\"383\"\u003eThis Wolf Tooth adapter lets you run flat mount brake calipers on a frame or fork that was originally designed for post mount brakes. It’s most commonly used when pairing road or gravel groupsets with mountain bike frames, where flat mount calipers are required.\u003c\/p\u003e\n\u003cp data-start=\"385\" data-end=\"568\"\u003eThe +20mm offset changes rotor sizing, so this adapter isn’t a simple bolt-on swap—it’s a precise solution when you’re intentionally mixing standards and need correct brake alignment.\u003c\/p\u003e\n\u003cp data-start=\"570\" data-end=\"836\"\u003e\u003cstrong data-start=\"570\" data-end=\"586\"\u003eKey Features\u003c\/strong\u003e\u003cbr data-start=\"586\" data-end=\"589\"\u003e• Converts post mount frames or forks to accept flat mount calipers\u003cbr data-start=\"656\" data-end=\"659\"\u003e• +20mm offset design for larger rotor compatibility\u003cbr data-start=\"711\" data-end=\"714\"\u003e• CNC machined from 6061-T6 aluminum\u003cbr data-start=\"750\" data-end=\"753\"\u003e• Lightweight and rigid construction\u003cbr data-start=\"789\" data-end=\"792\"\u003e• Tested with SRAM and Shimano brake systems\u003c\/p\u003e\n\u003cp data-start=\"838\" data-end=\"1317\"\u003e\u003cstrong data-start=\"838\" data-end=\"867\"\u003eCompatibility \u0026amp; Use Notes\u003c\/strong\u003e\u003cbr data-start=\"867\" data-end=\"870\"\u003e• Adapter type: Post Mount to Flat Mount\u003cbr data-start=\"910\" data-end=\"913\"\u003e• Offset: +20mm\u003cbr data-start=\"928\" data-end=\"931\"\u003e• Fits post mount native sizes: 140mm, 160mm, 180mm\u003cbr data-start=\"982\" data-end=\"985\"\u003e• Works with rotor sizes: 160mm, 180mm, 200mm\u003cbr data-start=\"1030\" data-end=\"1033\"\u003e• A 140mm post mount native requires a 160mm rotor\u003cbr data-start=\"1083\" data-end=\"1086\"\u003e• A 160mm post mount native requires a 180mm rotor\u003cbr data-start=\"1136\" data-end=\"1139\"\u003e• A 180mm post mount native requires a 200mm rotor\u003cbr data-start=\"1189\" data-end=\"1192\"\u003e• Requires minimum 13mm clearance between top of brake boss and frame\/fork\u003cbr data-start=\"1266\" data-end=\"1269\"\u003e• Not compatible with flat mount frames or forks\u003c\/p\u003e\n\u003cp data-start=\"1319\" data-end=\"1618\"\u003e\u003cstrong data-start=\"1319\" data-end=\"1350\"\u003eService \/ Ownership Context\u003c\/strong\u003e\u003cbr data-start=\"1350\" data-end=\"1353\"\u003eThis adapter changes both mounting standard and rotor size, so careful planning is required before installation. Rotor size, fork or frame clearance, and caliper compatibility must all be confirmed. Torque hardware evenly and verify caliper alignment before riding.\u003c\/p\u003e\n\u003cp data-start=\"1620\" data-end=\"1936\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1620\" data-end=\"1641\"\u003eFit \u0026amp; Use Signals\u003c\/strong\u003e\u003cbr data-start=\"1641\" data-end=\"1644\"\u003e• You’re mounting flat mount brakes on a post mount frame or fork\u003cbr data-start=\"1709\" data-end=\"1712\"\u003e• You’re mixing road or gravel brakes with an MTB frame\u003cbr data-start=\"1767\" data-end=\"1770\"\u003e• You understand the required rotor size change\u003cbr data-start=\"1817\" data-end=\"1820\"\u003e• Not a fit if you want to keep the same rotor size\u003cbr data-start=\"1871\" data-end=\"1874\"\u003e• Not a fit if your frame or fork lacks the required clearance\u003c\/p\u003e","brand":"Wolf Tooth","offers":[{"title":"Default Title","offer_id":52940458262842,"sku":null,"price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/5735\/8394\/files\/BR0254.jpg?v=1769461356","url":"https:\/\/gograva.com\/products\/wolf-tooth-disc-brake-adapter-post-mount-to-flat-mount-20mm","provider":"Grava Adventure Corporation","version":"1.0","type":"link"}