SRAM DUB PressFit Bottom Bracket, Black, 89/92 mm MTB — Sealed Cartridge, Lightweight

The SRAM DUB PressFit Bottom Bracket (BB89.5/BB92) is a lightweight, sealed-cartridge solution that secures a DUB spindle in 89mm or 92mm mountain-bike frames for smooth, long-lasting crank performance.

Built to pair with SRAM's DUB crank system, this PressFit unit combines a single oversized spindle interface with sealed bearings and advanced sealing to protect against dirt and moisture. Designed for modern MTB frames with 89.5mm or 92mm shell widths, it reduces rotational friction and trims weight compared with older GXP-style setups. The result is a durable, low-maintenance bottom bracket that keeps power transfer efficient across varied trail conditions.

How does this bottom bracket protect bearings on muddy or wet rides?

The DUB PressFit uses improved sealing around the cartridge bearings to keep contaminants out and lubricant in, extending service intervals. Its design channels water and grime away from bearing races so the internals experience less wear.

• Gutter-style seal design to divert debris
• Fully enclosed cartridge bearings for simplified maintenance
• Durable materials suited for off-road exposure

Will this work with my frame and crankset?

This unit fits frames with a 41mm shell inner diameter and accepts BB89.5 or BB92 press-fit shell widths. It is purpose-built for SRAM DUB spindles, offering a single oversized spindle standard that replaces multiple older spindle interfaces.

• Compatible with frames having 41mm I.D. and 89.5mm or 92mm shell widths
• Specifically engineered for SRAM DUB crank spindles
• One spindle standard simplifies crank compatibility across bikes

How will this affect weight and pedaling feel?

Compared with GXP-style bottom brackets, the DUB PressFit trims grams while maintaining stiffness for reliable power transfer. Riders will notice smooth rotation from the sealed cartridge bearings, and the reduced weight contributes to a lighter overall drivetrain without sacrificing durability.

• Approximately 110 grams total weight for the unit
• Sealed cartridges reduce friction and maintain a consistent spin
• Oversized spindle design preserves crank stiffness and responsiveness

How simple is installation and upkeep?

Press-fit installation requires a compatible press tool and attention to shell faces, but the sealed cartridge format keeps routine maintenance minimal. When service is needed you replace the entire cartridge rather than disassembling bearing races, which speeds up repairs.

• Press-fit cups require a bearing press for correct assembly
• Sealed cartridges are replacement-ready to simplify servicing
• Reduced maintenance intervals thanks to enhanced sealing

Who is this for: Riders running SRAM DUB cranks on mountain bikes with 89.5mm or 92mm press-fit shells who want a lightweight, low-maintenance bottom bracket that shields bearings from the elements. It's a practical choice for trail, enduro, and all-mountain cyclists seeking reliable power transfer with minimal upkeep.