Sram-Truvativ DUB Bottom Bracket | BB-DUB-BSA-A1

The bottom brackets for Sram and Truvativ DUB MTB / road cranksets. The DUB bottom brackets are specifically designed for 28.99 mm axle diameters and are not compatible with other cranksets. Equipped 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 and Road
• Bearing cups: CNC-machined aluminium, outer diameter 44 mm
• Bearings: Sealed stainless steel industrial bearings
• Bottom bracket shell size: BSA 68/73 mm 1.37
• Compatible with 68 and 73 mm bottom bracket shells; E-type derailleur mounting also possible.
• Includes 2 x 2.5 mm spacers
• Easy installation and adjustment

Included:

Sram Dub bottom bracket BSA thread, 2 x 2.5 mm washers for 68 mm MTB bottom bracket

Matching bottom bracket wrench 44 mm:

• Race Face Part No: 23D30146
• Cyclus 7202712

BSA threaded bottom bracket cups

The BSA bottom bracket shells have a width of 68–73 mm and a thread of 1.370 × 24 TPI, with an outer diameter of 33.6–33.9 mm, into which the bearing cups are screwed. Both bearing cups are screwed in the direction of travel. The different shell widths are accommodated using the washers included in the delivery.

SRAM DUB crank axles 28.99 mm:

SRAM has developed its own axle standard for DUB cranks. The SRAM DUB cranks have an axle diameter of 28.99 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 the 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