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SKU: BTBK1261

Wolf Tooth BSA English Bottom Bracket - 68/73mm Shell, 30mm Spindle Compatibility, Premium Sealed Bearings, Durable Chrome Steel, Weather-Resistant, Lightweight, USA Machined, Designed for Smooth Pedaling & Creak-Free Performance

Regular price $129.95
$129.95 Sale price $129.95 Regular price
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Description
Specifications

Upgrade your bicycle's performance with the Wolf Tooth Bottom Bracket - a precision-engineered, durable, and lightweight solution designed for serious cyclists. This high-quality English (BSA) bottom bracket is compatible with 68mm and 73mm shells and optimized for 30mm spindle cranksets. Crafted with advanced materials and innovative sealing technology, it's perfect for mountain biking, gravel riding, and endurance cycling.

Materials & Engineering Excellence

Constructed from CNC-machined aluminum (AlSi 52100 chrome bearing steel hardened to Rc 61-66), this bottom bracket offers exceptional durability and corrosion resistance, thanks to its ZNA coating. The custom ball bearings ensure smooth pedaling and reduced friction, enabling efficient energy transfer on every ride. Its lightweight design (weighing only 82 grams) combines strength and agility, enhancing your bike's overall performance.

Sealing & Components Technology

Wolf Tooth's best-in-class weather sealing features O-ring seals on the spindle and inner shell, a labyrinth end cap design, and a wiper connection seal-guarding bearings against water, mud, and trail debris. The spindle employs custom polymer bushings to prevent creaking and increase longevity, ensuring a silent and seamless ride over rough terrain.

Innovative Features & Compatibility

Designed for versatility, this bottom bracket supports multiple spindle interface options, including RaceFace/Easton CINCH, 386 EVO, and 392 EVO standards. Its adjustable-width shells fit properly within 68mm or 73mm bottom bracket shells, making it a perfect upgrade for trail, gravel, or cyclocross bikes. Machined in Minnesota, USA, Wolf Tooth emphasizes precision manufacturing and local craftsmanship.

Style & Use Case

The sleek raw silver finish complements any bike aesthetic while providing corrosion resistance and long-lasting shine. Ideal for mountain biking, gravel adventures, and everyday riding, this bottom bracket enhances your bike's performance, ensuring reliable power transfer, smoother pedaling, and a quieter operation.

Key Features at a Glance:

- High-strength AlSi 52100 chrome bearing steel with corrosion-resistant ZNA coating

- Best-in-class sealing protects against water, mud, and debris

- Custom polymer spindle bushings prevent creaking and extend crankset life

- Compatible with 68mm and 73mm BSA frames; adjustable shell width

- Multiple spindle interface options for versatile crank compatibility

- Machined in Minnesota, USA with precision engineering

Upgrade to the Wolf Tooth Bottom Bracket for unmatched durability, smoothness, and reliability-because your ride deserves the best.

  • Designed with high-grade materials, the Wolf Tooth Bottom Bracket features hardened AlSl 52100 chrome bearing steel with a ZNA corrosion-resistant coating for enhanced durability and reduced friction during pedaling.
  • Engineered for top-tier performance, this bottom bracket incorporates best-in-class weather seals, labyrinth end caps, and an o-ring seal system to keep water, mud, and trail debris out, ensuring reliable operation in all conditions.
  • Utilizing innovative components and technology, the bottom bracket includes custom polymer spindle bushings that prevent creaking and extend crankset lifespan, along with precision-machined bearings optimized for smooth, quiet rotation.
  • With adjustable shell widths for 68mm and 73mm frames, this bottom bracket provides versatile compatibility with a range of classic English (BSA) bottom bracket shells, making it suitable for various mountain and road bikes.
  • Crafted in Minnesota, USA, the Wolf Tooth bottom bracket is machined with precision at Wolf Tooth's facility, guaranteeing high-quality construction, easy installation, and seamless integration with RaceFace/Easton CINCH, 386 EVO, and 392 EVO spindle interfaces.
Bottom Bracket Shell I.D.1.37
BB/Frame InterfaceEnglish
BB Shell Width (mm)68
BB Shell Width (mm)73
Weight82
Spindle Interface TypeRaceFace/Easton CINCH
Spindle Interface Type386 EVO
Spindle Interface Type392 EVO
Defined ColorSilver
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