There are few headaches in the bike world like the current bottom bracket landscape. SRAM aims to unify the current sea of standards with one system without introducing a new shell standard. It is a lofty goal indeed but one worth pursuing. It seems that building up a bike these days is fun until one gets to 'that' bottom bracket part. Given a frame, one has to research and educate oneself to see what kind of bottom bracket it takes.

SRAM aims to change that with the introduction of the DUB BB/Crank system.



DUB is compatible with all major bottom bracket standards. Offering better sealing than ever before, without having to make compromises to fit all frames. It opens the door for a new crank spindle for what they claim is the world's all-time lightest crank set.

SRAM XX1 Gold  DUB Crankset

XX1 Gold DUB crankset.​

XX1 Eagle DUB Crankset

The all-new XX1 Eagle Carbon Tuned crankset is the lightest, stiffest and strongest to date. They've simplified the system thus increasing compatibility and durability.

Features and Benefits

  • DUB technology delivers the lightest, stiffest, strongest crankset available
  • All-new SRAM Carbon Tuned crank technology provides extreme stiffness and light weight
  • The X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and extraordinary durability

MSRP Price is $515-$525.

SRAM X01 carbon red DUB Crankset

X01 carbon red DUB crankset.​

X01 Eagle DUB Crankset

Available: Feb 2018

This is a completely re-engineered design, employing the proprietary Carbon Tuned lay-up technology. Built tough, to handle aggressive lines through rock gardens and big hits wherever you find them. The new X01 Eagle is SRAM's best, toughest and most aggressive Trail and Enduro crankset thanks to SRAM DUB technology. With a better-engineered bottom bracket and a new spindle design, there is better sealing against contamination-and define a new measure of durability.

Features and Benefits

  • DUB technology delivers the strongest, stiffest, lightest crankset available
  • SRAM Carbon Tuned crank technology provides extreme stiffness and light weight

MSRP Price is $485-$495.

SRAM GX DUB Crankset

GX DUB crankset.​

GX Eagle DUB Crankset

Available: Feb 2018

Aluminum and affordable, the SRAM GX Eagle crankset features SRAM's X-SYNC 2 tooth profile chainring for complete chain control. Each tooth's thickness is precisely toleranced and controlled to work seamlessly with the chain's inner and outer links. SRAM DUB technology features a better-engineered bottom bracket and a new spindle design.

Features and Benefits

  • Optimized 7000 series forged aluminum arms
  • DUB technology features a uniform approach to bottom bracket fitment, better sealing against contamination and is forward and backward compatible

MSRP Price is $135-$185.

SRAM Eagle DUB Crankset

Eagle DUB crankset.​

Descendant Carbon DUB Crankset

Available: Feb 2018

The Descendant carbon crankset uses a proprietary Truvativ carbon construction process that delivers a crankset light enough for XC, yet bold and badass enough for Enduro.

Features and Benefits

  • Carbon construction for lightweight durability
  • DUB technology features a uniform approach to bottom bracket fitment, better sealing against contamination and is forward and backward compatible
  • Fully compatible with any 1x drivetrain
  • DUB technology features a uniform approach to bottom bracket fitment, better sealing against contamination and is forward and backward compatible

MSRP Price is $260.

SRAM Descendant 6K DUB Crankset

Descendant 6K DUB crankset.​

Descendant 6K DUB Crankset

Available: May 2018

The Descendant 6K crankset delivers consistent performance every time out. Featuring SRAM's X-SYNC 2 tooth profile chainring, the Descendant crankset is engineered for complete chain control. Each tooth's thickness is precisely toleranced and controlled to work seamlessly with the SRAM chain's inner and outer links. SRAM DUB technology features a better-engineered bottom bracket and a new spindle design. Together, these allow for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Now everyone can benefit from a new measure of durability.

Features and Benefits

  • Optimized 6000 series forged aluminum arms
  • DUB technology features a uniform approach to bottom bracket fitment, better sealing against contamination and is forward and backward compatible

MSRP Price is $105.

SRAM Stylo Carbon DUB Crankset

Stylo Carbon DUB crankset.​

Stylo Carbon DUB Crankset

Available: Feb 2018

We designed the new STYLO Carbon crankset for riders who feel most at home when riding endless single track. This is a completely new crankset, employing our proprietary layup technology. Built tough, to handle lines through rock gardens and trail, the new STYLO Carbon is strong, stiff and light. Combined with the new SRAM Eagle direct mount chainrings, and as a compatible crankset to the Eagle drivetrain. SRAM DUB technology features a better-engineered bottom bracket and a new spindle design. Together, these allow for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Now everyone can benefit from a new measure of durability.

Features and Benefits

  • Proprietary carbon layup technology
  • Fully compatible with any 1x drivetrain
  • DUB technology features a uniform approach to bottom bracket fitment, better sealing against contamination and is forward and backward compatible

MSRP Price is $260-$310.

SRAM Stylo 6K DUB Crankset

Stylo 6K DUB crankset.​

Stylo 6K DUB Crankset

Available: May 2018

The Stylo shares the same technology in their most affordable package.

Features and Benefits

  • 6000 series forged aluminum arms
  • DUB technology features a uniform approach to bottom bracket fitment, better sealing against contamination and is forward and backward compatible
MSRP Price is $105.

SRAM DUB

Set, then forget is the true test for most bike components including the DUB.​

For more information visit www.sram.com.