{"product_id":"btbk1585","title":"Wolf Tooth MK0 Ceramic Bottom Bracket - 30mm Spindle, BSA, 68 - 73mm Shell, Shadow Gray, High-Performance, Lightweight, Sealed Weatherproof Design","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade your bike's performance with the Wolf Tooth MK0 Bottom Bracket - English (BSA), 68\/73mm, for 30mm Spindle, Shadow Gray. Engineered for durability, efficiency, and lightweight performance, this premium bottom bracket is the ideal choice for cyclists seeking reliable power transfer and smooth ride quality.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003e### Materials \u0026amp; Construction\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eConstructed in the USA, the Wolf Tooth MK0 Bottom Bracket showcases high-quality 6061-T6 Aluminum cups and AISI 52100 chrome-bearing steel races hardened to Rc 60-65, offering exceptional strength and longevity. Paired with silicon nitride ceramic bearings and Urethane\/NBR seals, this bottom bracket provides superior resistance against water, mud, and debris, ensuring long-lasting performance in all riding conditions.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003e### Performance \u0026amp; Engineering\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eDesigned for optimal efficiency, the MK0 features custom ceramic bearings with best-in-class sealing, minimizing friction for effortless pedaling. The silicon nitride ceramic balls deliver low drag and high speed, while the precision-machined internal sleeves allow adjustable width to fit 68mm and 73mm BSA shells. The custom polymer spindle bushings eliminate creaking and metal-on-metal contact, drastically extending bearing life and enhancing overall ride smoothness.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003e### Components \u0026amp; Technology\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003e- Ceramic Bearings: Reduce drag, increase speed, and offer unmatched durability\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003e- Weather Sealing: Advanced sealing technology protects against water, mud, and debris\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003e- Adjustable-Width Sleeve: Fits multiple shell widths (68mm, 73mm, 83mm, 100mm)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003e- Compatibility: Designed for 30mm spindle cranksets, including RaceFace Cinch\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003e- Installation: Compatible with standard 44-12 spline (24mm) and 46-12 spline (29mm DUB, 30mm) tools for easy installation and removal\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e### Style \u0026amp; Use Case\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003eSport a sleek Shadow Gray finish that complements modern mountain bikes, gravel rigs, or trail bikes. The lightweight yet rugged design makes it perfect for aggressive mountain biking, endurance riding, or daily commuting where reliable performance is essential. Its CNC-machined aesthetic offers an impressive look that seamlessly blends form and function.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e### Innovative \u0026amp; Differentiating Features\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Best-in-Class Sealing: Ensures longest-lasting performance by preventing contaminants\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003e- Custom Bushings \u0026amp; Seals: Eliminate creaks and reduce seal drag for superior weatherproofing\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003e- Lightweight Design: CNC-machined for weight reduction without sacrificing strength\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-18\"\u003e\u003cp\u003e- Made in the USA: Crafted with precision quality standards for durability and reliability\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-19\"\u003e\u003cp\u003e### Technical Specs\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-20\"\u003e\u003cp\u003e- Weight: 77g (including complete assembly, without spacers)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-21\"\u003e\u003cp\u003e- Compatible Spindles: 30mm spindle (RaceFace Cinch or similar)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-22\"\u003e\u003cp\u003e- Shell Fitment: 68mm and 73mm BSA shells, with available spacers for wider shells\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-23\"\u003e\u003cp\u003e- Color: Shadow Gray\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-24\"\u003e\u003cp\u003e- Material: Aluminum, ceramic, polymer, steel\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-25\"\u003e\u003cp\u003e- Maximizes Performance: Ideal for progressive riders demanding seamless power transfer and peace of mind on rugged trails or long-distance rides\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-26\"\u003e\u003cp\u003eElevate your bike with the Wolf Tooth MK0 Bottom Bracket, delivering unmatched durability, effortless pedaling, and a sleek aesthetic-all engineered right here in Minnesota, USA. Perfect for cyclists seeking cutting-edge technology, robust sealing, and lightweight performance in a reliable bottom bracket solution.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eElevate your bike's performance with the Wolf Tooth MK0 Bottom Bracket, engineered for durability and efficiency in tandem with high-performance materials like 6061-T6 aluminum and silicon nitride ceramic bearings, ensuring a lightweight yet robust build. \u003c\/li\u003e\n\u003cli\u003eFeaturing advanced sealing technology and custom polymer spindle bushings, this bottom bracket provides exceptional weatherproofing-resisting water, mud, and debris-while eliminating creaking and metal-on-metal wear for smooth, reliable operation. \u003c\/li\u003e\n\u003cli\u003eDesigned for versatility, the MK0 Bottom Bracket supports 30mm spindle cranksets and fits a wide range of shell widths from 68mm to 73mm, with available add-on sleeves for 83mm and 100mm shells, making it perfect for diverse bike setups. \u003c\/li\u003e\n\u003cli\u003eUtilizing innovative ACOSUR-ZNA corrosion-resistant coating and precisely machined CNC components, this bottom bracket offers superior speed, longevity, and effortless installation using standard 44-16 or 46-12 spline tools. \u003c\/li\u003e\n\u003cli\u003eMade in the USA by Wolf Tooth, the MK0 Bottom Bracket combines form and function with aggressive weight reduction, integrated sealing, and compatibility with DUB, 24, and 30mm spindles-designed to enhance your riding experience under all conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Wolf Tooth","offers":[{"title":"Default Title","offer_id":43419264385091,"sku":"BTBK1585","price":309.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/CR2590.jpg?v=1781646708","url":"https:\/\/365cycles.com\/products\/btbk1585","provider":"365 Cycles","version":"1.0","type":"link"}