{"product_id":"wolf-tooth-t47-external-bottom-bracket-t47-external-68-73mm-for-30mm-spindle-ultraviolet-purple-copy","title":"Wolf Tooth Bottom Bracket - English (BSA), 68\/73mm, For 24mm Spindle, Black","description":"Wolf Tooth English (BSA) bottom brackets deliver durability, reliability, and smooth performance engineered for serious riders. Best-in-class weather sealing features o-ring seals on the spindle and inner shell, a wiper connection seal between bearing and end cap, bearing race seals, and a labyrinth end cap design to keep water and trail debris out.\n\nCustom polymer spindle bushings eliminate metal-on-metal contact between the bearing inner race and crank spindle, preventing creaking and extending crankset life. The custom AlSi 52100 chrome bearing steel is hardened to Rc 61-66 for reduced friction and smooth pedaling, with ZNA corrosion-resistant coating for long-term protection. Ball diameter, width, and counts were custom selected by Wolf Tooth based on spindle diameter for optimal performance.\n\nAdjustable-width shells fit both 68mm and 73mm English (BSA) frame bottom bracket shells. Machined at Wolf Tooth in Minnesota, USA.","brand":"Quality Bicycle Products - QBP","offers":[{"title":"Default Title","offer_id":52914004689205,"sku":null,"price":129.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/0391\/5061\/files\/CR4662_0e39053b-67c0-450c-94c4-ecac8daea584.jpg?v=1781040093","url":"https:\/\/merchantcycles.com\/products\/wolf-tooth-t47-external-bottom-bracket-t47-external-68-73mm-for-30mm-spindle-ultraviolet-purple-copy","provider":"Merchant Cycles","version":"1.0","type":"link"}