Wolf Tooth BSA Bottom Bracket

Wolf Tooth's BSA bottom bracket, machined at its Minnesota HQ, isn't just another component, it follows the company's philosophy of producing precision engineered, lightweight products. Made from aerospace grade aluminium, it has carefully positioned seals, O-rings and end caps to shield the bearings from the harshest conditions, making it as tough as it is smooth.

With an adjustable shell width that allows it to fit 68 and 73mm shells, it features durable, low friction and corrosion-resistant, custom chrome bearings, with the ball diameter, width and counts all selected by Wolf Tooth for top quality and optimal longevity.

Wolf Tooth has designed its bottom bracket to withstand the toughest elements that can be thrown at it, with O-rings on the spindle and inner shell, a wiper connection seal between the bearing and end cap, bearing race seals and finally a labyrinth end cap design, to meticulously lock out dirt so that your ride stays smooth and silent.

Metal on metal or spindle on bearing races are common causes of creaking. An engineered polymer bushing isolates metal on metal contact on the bearing inner races and crank spindle, putting an end to unwanted noise and wear.

Available in a range of anodised colours, to match the rest of the brand's products, the bottom bracket is easily serviceable and repairable, with spare parts available through Wolf Tooth's 'Right to Repair' scheme. You can also feel confident with a Lifetime Warranty, because Wolf Tooth believes in what it builds.

Features

• BSA Bottom Bracket: Wolf Tooth BSA Bottom Brackets are engineered to be smooth, durable, lightweight, fast, and serviceable at home. Wolf Tooth's ground-up design features custom bearings, seals, bushings, and cups, which eliminate creaking and balance best-in-class weather sealing with optimised bearing radial compression, alignment, and preload for low drag
• Best-In-Class Sealing, No Sacrifice In Speed: Thoughtfully engineered sealing is designed to balance low drag with superior performance in all conditions. The grouping of a spindle o-ring, seals on the bearing /bushing gutter, light inner and outer bearing race seals, shell o-rings, and a labyrinth-style end cap ensure your bottom bracket will spin smoothly no matter what conditions you ride in
• No Creaks: Custom bushings separate the bearing inner race and crank spindle to eliminate metal-on-metal contact, the leading cause of bottom bracket creaks. This bushing also helps enhance bearing longevity with an interface to the bearing gutter seal for maximum weatherproofing. No metal-on-metal contact, no creaks. It's simple

Specification

• Made for a classic BSA threaded road or MTB frame
• With adjustable-width shell, fits 68 and 73mm shells
• O-ring seals on the spindle and inner shell
• Wiper connection seal between bearing and end cap
• Bearing race seals
• A labyrinth end cap design
• Polymer spindle bushings separate bearing inner race and crank spindle
• Choice of anodised colours to match your Wolf Tooth components
• Custom, AISI 52100 chrome bearings hardened to RC 61-66
• With ZNA corrosion-resistant coating
• Ball diameter, width and counts matched to spindle diameter
• Compatible with standard spline tools
• Machined in Minnesota, USA
• Made from 6061 aluminium