SRAM DUB BSA 68/73 MTB Wide bottom bracket

The SRAM DUB bottom bracket series has a simple job—connect your crankarms and protect the smooth, long-lasting application of power to your drivetrain. To allow that singular focus, we've engineered the DUB spindle to be the one true unifying component.

One oversized spindle to work across every bottom bracket specification. For better crankarm compatibility. For better protection from the elements. For longer-lasting performance. To be stronger, smoother, simpler. Now, back to the ride.

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Features - SRAM DUB BSA 68/73 mm WIDE bottom bracket

• One oversized spindle to work across every bottom bracket specification
• Gutter Seal Technology™ seals against the elements
• Significantly lighter than GXP® system
• Sealed cartridge bearings available in both stainless and ceramic versions

Product features

• Bottom bracket type: BSA
• Housing width: 68 mm/73 mm
• Housing diameter: 34.8 mm
• Compatibility: SRAM DUB WIDE crank
• Axle diameter: 28.99mm

Material

• Bearing shell: Aluminium
• Bearing: Steel

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Scope of delivery

• 1 x SRAM DUB BSA 68/73 MTB Wide bottom bracket
• incl. spacers 3, 5, 7.5 and 2.5 mm

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Technologies

DUB™
Forward thinking yet fully backwards compatible, DUB™ bottom bracket/crank technology is a workhorse that never gives up. Designed for the most demanding professional riders and for those who don't want to worry about anything after installation. DUB™ is compatible with all common bottom bracket standards. The system has a better seal than ever before and still fits into any frame. At the same time, it paves the way for a new type of crank axle and thus the world's lightest crankset to date. It's a new approach that incorporates the old. It's about time.

After a long period of research, Sram is standardising the diameter of bike crankshafts and bottom brackets to 28.99 mm from 2018. The new DUB (Durable Unifying Bottom Bracket) bearing technology will set new standards from now on.