AM BB DUB English/BSA WIDE Bottom Brackets

What Our Gearhead® Experts Are Saying:

“I’ve used this bottom bracket on a couple of long-travel trail and enduro bikes with 83mm shells. The wider DUB setup keeps the chainline clean for Boost cranksets, and the sealed bearings hold up great in wet conditions. Super easy install and nearly maintenance-free.”

The SRAM DUB English Wide Bottom Bracket connects crankarms and keeps power transfer smooth—ride after ride. Designed specifically for 83mm BSA threaded frames, this version offers a perfect fit for SRAM DUB mountain cranksets with Boost 55mm chainlines, creating a more stable and efficient drivetrain interface.

Sealed cartridge bearings and SRAM’s Gutter Seal Technology™ help extend bearing life by keeping out mud, grit, and moisture—even in the wettest trail conditions. And with a single oversized DUB spindle that simplifies compatibility across bottom bracket standards, this is the go-to option for riders who prioritize reliable performance and future-proof crank integration.

Details

• Threaded 83mm bottom bracket for SRAM DUB Boost cranksets
• Designed for frames with English/BSA threading and wide 55mm chainline
• Gutter Seal Technology™ improves protection from water and debris
• Sealed cartridge bearings ensure smooth pedaling under load
• Compatible with all SRAM DUB 28.99mm spindle cranksets
• Optimized for mountain bikes with 83mm BSA threaded shells
• Reliable and low-maintenance option for aggressive trail riding
• Fits enduro and downhill setups needing wide chainline spacing
• Item #SRMD1II