Sram DUB BSA Ai MTB bottom bracket cups

Name: Sram DUB BSA Ai MTB bottom bracket cups
Brand: Sram
SKU: 137670791
Price: 31.99 EUR
Availability: InStock
Rating: 5 (13 reviews)

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13 Reviews

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Features of Sram DUB BSA Ai MTB

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Specifications Sram DUB BSA Ai MTB

Features of Sram DUB BSA Ai MTB

Color Black

Color

Black

Recommended Use MTB Cycling

Recommended Use

MTB Cycling

Product description of Sram DUB BSA Ai MTB bottom bracket cups

Description summary

Elevate your Cannondale Ai mountain bike with the SRAM DUB BSA Ai Bottom Bracket. Specifically engineered for the unique Ai offset, it guarantees a perfect chainline and flawless drivetrain performance. SRAM´s revolutionary DUB technology provides a lighter, stiffer, and more durable system, while advanced Gutter Seal Technology™ protects bearings from grit and water for incredible longevity. The reliable BSA threaded design ensures a secure, creak-free fit, making this the definitive upgrade for unmatched durability and efficiency on any trail

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SRAM DUB BSA Ai MTB Bottom Bracket Cups | Unmatched Durability for Cannondale Ai Frames

Elevate your mountain biking experience with the SRAM DUB BSA Ai MTB Bottom Bracket, a pinnacle of engineering designed specifically for the unique demands of Cannondale´s Asymmetric Integration (Ai) drivetrain system. This bottom bracket is the crucial link between your frame and your SRAM DUB crankset, creating a unified, robust, and incredibly efficient system that translates every watt of your power into forward momentum on the trail.

The core of this product lies in SRAM´s revolutionary DUB (Durable Unifying Bottom Bracket) technology. The goal was simple yet ambitious: to create a single, oversized spindle standard that simplifies compatibility across different frame shells while simultaneously improving performance. The DUB system achieves this by pairing a stiff and lightweight 28.99mm spindle with meticulously engineered, exceptionally sealed bearings. This innovative approach provides the perfect balance of stiffness, low weight, and long-lasting durability, making it the ideal choice for aggressive trail riding, cross-country racing, and all-mountain adventures.

Specifically designed for frames featuring a BSA threaded bottom bracket shell and Cannondale´s Ai offset, this component ensures a perfect chainline and optimal drivetrain performance. The Asymmetric Integration system shifts the drivetrain outward, allowing for shorter chainstays and a stiffer rear wheel, and this bottom bracket is precision-made to accommodate that unique offset.

Key Benefits:

* The DUB Advantage: Experience the unified DUB platform, which offers a lighter, stiffer, and more durable solution compared to previous systems. The single spindle diameter simplifies crankset and bottom bracket selection for future upgrades.
* Superior Sealing & Durability: Built for the rigors of MTB cycling, it features an advanced sealing system that provides exceptional protection against water, mud, grit, and dust. This Gutter Seal Technology™ significantly improves bearing life, ensuring smooth, creak-free performance ride after ride.
* BSA Threaded Reliability: Utilizes the time-tested and mechanic-friendly BSA threaded interface, known for its secure fit, resistance to creaking, and ease of installation and service.

Main Features:

* Integrated with SRAM´s groundbreaking DUB technology for a simplified and superior crankset-to-frame connection.
* Features a specific design to accommodate the Cannondale Ai (Asymmetric Integration) drivetrain offset.
* BSA threaded cup design for reliable and straightforward installation in compatible frames.
* Equipped with an advanced sealing system for all-weather, all-condition performance and longevity.
* Purpose-built to withstand the high-stress demands of modern MTB cycling.

This SRAM DUB BSA Ai Bottom Bracket is the definitive choice for riders of Cannondale Ai-equipped mountain bikes who demand the highest level of performance, reliability, and integration. By choosing this component, you are ensuring your drivetrain operates exactly as intended, with the enhanced durability and smoothness that the SRAM DUB ecosystem is celebrated for.

Technical Specifications:

* BB-Frame Interface: BSA Threaded, for Ai Offset
* Crank-BB Interface: DUB
* Bearing Type: Sealed Cartridge
* Spindle Diameter: 28.99 mm
* Shell Width: 73mm (for Ai-specific frames)
* Discipline: MTB Cycling

Bike parts - Bottom brackets.

SRAM DUB BSA Ai MTB bottom bracket cups.

Sram bike parts.
- bottom brackets.

Dub bsa mtb bottom bracket

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What our customers are saying about Sram DUB BSA Ai MTB bottom bracket cups

This genuine SRAM DUB bottom bracket is a high-quality, original part praised for its easy installation. The DUB system simplifies assembly, resulting in silent operation with smooth, durable bearings. It´s a robust and reliable MTB bottom bracket that performs well even in tough riding conditions. Note that a specific DUB tool is required for installation. The product is well-designed and includes spacers for a proper fit, making it an excellent upgrade

Great product

2024/08/17

andrea

Fast shipping and great product

Original product

2024/08/13

Pedro

Very good, good and original product, easy to assemble. Arrived on time.

As per description

2024/06/24

massimo

As described, excellent product. Be careful that you may need spacers because there are a couple of them supplied.

Great adapter

2023/06/06

Aliaksei

Everything fell right away, I didn’t even have to think about installing 10/10

Compliant

2022/09/03

John

Compliant product, nothing to say.

First Time SRAM Install - Looks Good!

2022/08/12

Kane

I'm typically more used to Shimano equipment, so this is the first time I'm doing an install of a SRAM product. Great to have videos and manuals abundant online direct from them! Have put this, along with a Force Wide bottom bracket on my '94 Specialized Stumpjumper in hopes that FINALLY I can put bigger than 40T chainrings on there!

Compliant and original

2022/06/15

Lionel

Compliant and original. Normal wear part that must be replaced because wear is rapid. The product is simple to implement. Delivery time respected.

Sram

2022/03/05

Hélio

I really liked the product, very good original, arrived very fast. The price was very good, I just didn't like it because I was taxed at a very high price.

Great

2022/02/04

Carlos

Excellent product, top quality Very beautiful. advise

Excellent BB

2021/01/08

Mark

Dub makes things so easy! Excellent product at a great price.

Great bb

2020/12/31

Chris

Great bottom bracket, easy to install and silent operation. DUB so needs a special DUB wrenchz Arrived to UK quickly despite christmas, covid and brexit!

Impeccable

2020/12/20

Eurico

Great product and easy to install!

Workhorse Bottom Bracket

2020/11/17

Gordon Frew

Really good bottom bracket, takes a hammering and bearings stay smooth, even after some horrendous riding conditions.

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Compatibility with Specialized Chisel 2022

2025/04/22

Luis alberto

Hi, is this compatible with my Specialized frame? I´d like to upgrade my cranks to GX. Thanks.

Answer of CHTHIN

Able to use for specialized mtb for sure and bottom bracket is very smooth

Boost 148mm compatible?

2022/06/15

Curt

Is this made for the 142mm or 148mm boost standard?

Answer of Christoph

This is a bottom bracket, 142mm and 148mm are wheel installation dimensions. Has nothing to do with each other. Bottom bracket width is important with this product.

Answer of Carlos

Good . Yes it is compatible, the only thing that changes from a 142 to a 148 is the platter.

Answer of Garry Francis

Can be use on both. Non-boost(142mm), use 6mm offset chainring. Boost(148mm), use 3mm offset chainring.

Dub BSA 73 mtb

2021/01/09

David Thomas

The Dub bsa is a Dub 73 MTB Al which sram say is for Cannondale only that not as you show in what I ordered. Please come back to me asap with what the right one I need. Regards David Thomas

Hello This bottom bracket is the 73mm Shell Width: 73 mm Axle Diameter: 28.99 mm (DUB) Regards

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Sram DUB BSA Ai MTB bottom bracket cups

Features of Sram DUB BSA Ai MTB

Sram - Bike parts - Bottom brackets

Specifications Sram DUB BSA Ai MTB

Features of Sram DUB BSA Ai MTB

Color Black

Recommended Use MTB Cycling

Product description of Sram DUB BSA Ai MTB bottom bracket cups

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What our customers are saying about Sram DUB BSA Ai MTB bottom bracket cups