{"product_id":"wolf-tooth-t47-internal-bottom-bracket","title":"Wolf Tooth T47 Internal Bottom Bracket","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eWolf Tooth T47 Internal Bottom Bracket\u003c\/strong\u003e is built around a bearing system that earns its keep in the real world — custom-designed balls and races machined from hardened chrome bearing steel, then treated with an ACOSUR ZNA coating that delivers corrosion resistance comparable to stainless after a 500-hour saltwater test. The result is a bottom bracket that stays quiet, spins freely, and holds up across seasons.\u003c\/p\u003e\n\n\u003cp\u003eCreaking is eliminated through custom polymer spindle bushings that remove metal-on-metal contact entirely. The adjustable-width sleeve fits T47 internal shells from 85.5mm to 92mm, and the whole unit installs and removes with a standard 52-16 spline tool — no specialist kit required. Wolf Tooth also backs every bottom bracket with a lifetime warranty on the bearings and a Right to Repair program, so replacement parts and service guides are available when you need them.\u003c\/p\u003e\n\n\u003ch3\u003eWolf Tooth T47 Internal Bottom Bracket Specs at a Glance\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpindle compatibility:\u003c\/strong\u003e 29mm DUB (also available in 24mm and 30mm variants)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell compatibility:\u003c\/strong\u003e T47 Internal, adjustable 85.5mm – 92mm width\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearing material:\u003c\/strong\u003e Hardened chrome steel with ACOSUR ZNA corrosion-resistant coating\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool interface:\u003c\/strong\u003e Standard 52-16 spline\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Engineered, machined, and assembled in Minnesota, USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Wolf Tooth","offers":[{"title":"29mm \/ Black","offer_id":45079747330092,"sku":"WBB-T47I-29-BLK","price":139.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Blue","offer_id":45210248511532,"sku":"WBB-T47I-29-BLU","price":139.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Espresso","offer_id":45210248544300,"sku":"WBB-T47I-29-ESP","price":139.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Gold","offer_id":45210248577068,"sku":"WBB-T47I-29-GLD","price":139.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Olive","offer_id":45210248609836,"sku":"WBB-T47I-29-OLV","price":139.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Orange","offer_id":45210248642604,"sku":"WBB-T47I-29-ORG","price":139.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Ultraviolet Purple","offer_id":45210248675372,"sku":"WBB-T47I-29-PRU","price":139.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Raw Silver","offer_id":45210248708140,"sku":"WBB-T47I-29-RSIL","price":139.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Red","offer_id":45210248740908,"sku":"WBB-T47I-29-RED","price":139.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Black","offer_id":45079747461164,"sku":"WBB-T47I-30-BLK","price":139.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Blue","offer_id":45210248773676,"sku":"WBB-T47I-30-BLU","price":139.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Espresso","offer_id":45210248806444,"sku":"WBB-T47I-30-ESP","price":139.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Gold","offer_id":45210248839212,"sku":"WBB-T47I-30-GLD","price":139.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Olive","offer_id":45210248871980,"sku":"WBB-T47I-30-OLV","price":139.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Orange","offer_id":45210248904748,"sku":"WBB-T47I-30-ORG","price":139.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Ultraviolet Purple","offer_id":45210248937516,"sku":"WBB-T47I-30-PRU","price":139.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Raw Silver","offer_id":45210248970284,"sku":"WBB-T47I-30-RSIL","price":139.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Red","offer_id":45210249003052,"sku":"WBB-T47I-30-RED","price":139.95,"currency_code":"USD","in_stock":true},{"title":"24mm \/ Black","offer_id":45079747035180,"sku":"WBB-T47I-24-BLK","price":139.95,"currency_code":"USD","in_stock":false},{"title":"24mm \/ Blue","offer_id":45210248249388,"sku":"WBB-T47I-24-BLU","price":139.95,"currency_code":"USD","in_stock":false},{"title":"24mm \/ Espresso","offer_id":45210248282156,"sku":"WBB-T47I-24-ESP","price":139.95,"currency_code":"USD","in_stock":false},{"title":"24mm \/ Gold","offer_id":45210248314924,"sku":"WBB-T47I-24-GLD","price":139.95,"currency_code":"USD","in_stock":false},{"title":"24mm \/ Olive","offer_id":45210248347692,"sku":"WBB-T47I-24-OLV","price":139.95,"currency_code":"USD","in_stock":false},{"title":"24mm \/ Orange","offer_id":45210248380460,"sku":"WBB-T47I-24-ORG","price":139.95,"currency_code":"USD","in_stock":true},{"title":"24mm \/ Ultraviolet Purple","offer_id":45210248413228,"sku":"WBB-T47I-24-PRU","price":139.95,"currency_code":"USD","in_stock":true},{"title":"24mm \/ Raw Silver","offer_id":45210248445996,"sku":"WBB-T47I-24-RSIL","price":139.95,"currency_code":"USD","in_stock":false},{"title":"24mm \/ Red","offer_id":45210248478764,"sku":"WBB-T47I-24-RED","price":139.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/wolf-tooth-t47-internal-bottom-bracket-9024764.jpg?v=1771292120","url":"https:\/\/racycles.com\/products\/wolf-tooth-t47-internal-bottom-bracket","provider":"RA Cycles","version":"1.0","type":"link"}