Tech

SRAM tackle bottom bracket standards with DUB

Supplied by SRAM.

· By Press Office · 0 comments

Forward thinking and backwards compatible SRAM DUB BB/Crank technology is the workhorse without restraint. Designed for the most discerning pros. And riders who set it and neglect it. DUB is compatible with all major bottom bracket standards. Offering better sealing than ever before, without having to make compromises to fit all frames. Yet it opens the door for a new crank spindle for the world’s all-time lightest crankset. It’s a new approach that embraces the old. And it’s about time.

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DUB Cranksets

XX1 Eagle DUB SL Crankset

True competitors are always looking for a performance advantage — a relentless pursuit of equipment that is lighter, stiffer, stronger and more durable. To create the best drivetrain possible, we re-examined and re-engineered our crankset design. Our all-new XX1 Eagle CARBON TUNED crankset is our lightest, stiffest and strongest to date. SRAM DUB technology enhances this by simplifying the relationship of the spindle to the bottom bracket, and redefining the measure of durability. DUB-powered cranksets mean simplicity, compatibility and durability.

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Features:

  • DUB technology delivers the lightest, stiffest, strongest crankset available
  • All-new SRAM CARBON TUNED crank technology provides extreme stiffness and light weight
  • The X-SYNC2 chainring provides significantly quieter performance, with better mud clearing and extraordinary durability

MSRP PRICE: $515 – $525 | €570 – €585 | £510 – £520

X01 Eagle DUB Crankset

We know you have a lot of choices when choosing a crankset, and your choice says a lot about your personal style. We designed the new X01 Eagle crankset for riders who feel most stylish when they stand on top of the podium. This is a completely reengineered design, employing our 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 our best, toughest and most aggressive Trail and Enduro crankset thanks to SRAM DUB technology, which 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 define a new measure of durability. If you’re into that kind of thing.

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Features:

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

MSRP PRICE: $485 – $495 | €540 – €550 | £480 – £490

GX Eagle DUB Crankset

The SRAM GX Eagle crankset delivers consistent performance every time out. Featuring SRAM’s X-SYNC2 tooth profile chainring, the GX crankset is engineered 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. 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.

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Features:

  • 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: $135 – $185 | €150 – €205 | £135 – £185

Descendant Carbon DUB Crankset

The svelte strength of carbon fiber with the swagger of heavy metal. 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. Style and substance – Descendant. 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.

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Features:

  • 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: $260 | €290 | £255

Descendant 6K DUB Crankset

The Descendant 6K crankset delivers consistent performance every time out. Featuring SRAM’s X-SYNC2 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.

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Features:

  • 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: $105 | €115 | £105

STYLO Carbon DUB Crankset

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.

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Features:

  • 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: $260 – $310 | €290 – €345 | £255 – £305

STYLO 6K DUB Crankset

The STYLO 6K crankset delivers consistent performance every time out. Featuring SRAM’s X-SYNC2 tooth profile chainring, the STYLO 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.

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Features:

  • 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: $105 | €115 | £105

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Bottom Brackets

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  • SRAM DUB is the single replacement for 30mm and 24mm BB spindles options
  • DUB bottom brackets fit all frame shell standards
  • DUB does NOT introduce any new frame shell standard

ccs-62657-0-51747800-1516108795.jpgDUB BB30.
ccs-62657-0-57721900-1516108796.jpgDUB BSA.
ccs-62657-0-60091400-1516108797.jpgDUB PressFit
ccs-62657-0-60170000-1516108798.jpgDUB PressFit 30.

MSRP PRICE: $38 – $50 | €38 – €52 | £32 – £44

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DUB Q&A:

What does “DUB” stand for?

Durable
Unifying
Bottom Bracket

What are the main differences between DUB and GXP?

DUB uses an oversized aluminum spindle while GXP uses a 24mm steel spindle.
DUB cranks fit into all major existing fram BB shell standards while GXP only fits into the 24mm specific versions.
DUB BBs are more durable than GXP BBs.

Is the DUB spindle the same as your 30mm cranks?

No. The DUB spindle is still an oversized aluminum spindle, but is slightly smaller than our current 30mm spindle cranks.

What is the weight difference between your XX1 GXP and XX1 DUB system?

We have dropped about 80g from our current XX1 GXP crankset and now are easily the lightest carbon crankset in the market.

498g = SRAM XX1 DUB, 175mm, 32T with BB
576g = SRAM XX1 GXP, 175mm, 32T with BB

For reference the Race Face Next SL G4, 175mm, 32T with BB is 518g.

Do all levels of DUB cranks lose as much weight as the XX1 version?

No. Each level of crank has a different change in weight from our current offering.

Are all the DUB spindles the same?

No. The DUB spindles will vary based on level of DUB crank they are used on.

XX1 – DUB SL bonded spindle
X01 – DUB bonded spindle
Desc C/Stylo C – DUB 7000 series press-in spindle
GX – DUB 7000 series press-in spindle
Desc 6k/Stylo 6k – DUB 6000 series press-in spindle

Are DUB spindles removable?

No. DUB spindles are either bonded into the cranks (XX and X0) or they use a press in interface (all other models). No matter which model, the left arm will come with a non-removable spindle.

The good part about this is that the same spindle will work for all major standard BB configurations.

How do the new DUB cranks align with the current SRAM product offering?

SRAM will have an equivalent DUB Eagle crank offering at all of the levels of SRAM/TRUVATIV Eagle crank offerings today.

What is the price of DUB cranks compared to current SRAM cranks?

The prices of each equivalent model level of DUB cranks will vary in the range between where the 24mm version and 30mm version was priced at last year.

What is the difference in Eagle rings between the levels?

The rings used throughout the DUB Eagle crank line differ in construction method and material, but all will have the same proven chain retention and wear characteristics that you have come to know from our current Eagle offering.

XX1 – Aluminum CNC Eagle SL ring
X01 – Aluminum CNC Eagle ring
Desc C/Stylo C – Aluminum cold forged Eagle ring GX – Aluminum cold forged Eagle ring
Desc 6k/Stylo 6k – Steel stamped Eagle ring

Do DUB cranksets come in Super BOOST Plus chainline configuration?

No. Currently the DUB platform does not offer a Super BOOST Plus compatible crankset.

What ring sizes are offered for each level of DUB crank?

DUB cranks are fully compatible with all of SRAM’s existing 3-bolt direct mount interface rings.

SRAM XX1 – 30/32/34/36/38T
SRAM X01 – 30/32/34/36T
All other models – 30/32/34T

Do DUB cranksets come in BOOST 148 chainline configurations?

Yes. All of our DUB Eagle cranks come in both BOOST (52mm) and Non-BOOST (49mm) chainlines. These specific chainlines are critical for proper Eagle system functionality/performance.

Do you have Fatbike versions of DUB cranks?

Yes, we have various pricepoints of both 4” (170mm OLD) and 5” (190mm OLD) fatbike configurations. Please refer to SRAM.com for specific details.

Do you have DH versions of DUB cranks?

No. At this time we do not have our DH cranks converted over to the DUB platform. But it is in our plans in the future. For this model year, please continue to purchase our 24mm GXP systems for DH applications.

What BBs do you offer for with DUB?

We have BBs that will fit into all major existing frame BB shell standards.

DUB BSA 68
DUB BSA 73
DUB BSA 100
DUB PF89.5
DUB PF92
DUB PF121
DUB BB30 73
DUB PF30 73

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