Sram-Truvativ DUB bottom bracket

The bottom brackets for Sram and Truvativ DUB cranksets. The DUB bottom brackets are specifically designed for a 29.88 mm axle diameter and are not compatible with other cranksets. Fitted with high-quality industrial bearings and excellent seals, the DUB bottom brackets ensure long-lasting, trouble-free cycling.

Sram-Truvativ DUB Technical Specifications:

• Application: MTB
• Bearing cups: CNC-machined aluminium
• Bearings: Sealed industrial bearings
• Bottom bracket shell dimensions: 42 mm press-fit, 83 mm bottom bracket shell width; also suitable for Cannondale AI frames
• Easy installation and adjustment

Included in delivery:

Sram Dub BB30A bottom bracket, spacers for asymmetrical 83 mm bottom bracket shell and MTB DUB cranks

BB30A 83 bottom bracket shell, asymmetrical

Unlike standard BB30 bottom bracket shells, the BB30A is asymmetrical. The press-fit diameter of the bearings is 42 mm and the bottom bracket shell width is 83 mm. The drive side of the bottom bracket is narrower than the non-drive side. This installation dimension was developed by Cannondale and is only compatible with MTB cranks. Therefore, BB30 cranks or bottom brackets will not fit.

SRAM DUB crank axles 29 mm:

SRAM has developed its own axle standard for DUB cranks. Sram DUB cranks have an axle diameter of 29 mm and are only compatible with bottom brackets designed for DUB cranks. The MTB DUB cranks have a longer axle (112 mm) than the road bike DUB cranks (106 mm). This means that MTB cranks can also be fitted to frames with wider bottom bracket shells.

Herstellerinformation: SRAM, 1000 W Fulton Market #4, 60607 Chicago, Illinois, United States, http://www.sram.com | Contact EU: SRAM Europe Sales and Services B.V., Paasbosweg 16, 3862 ZS Nijkerk, Netherlands, https://www.sram.com