Sram Dub BB89.5/BB92 Bottom Bracket -Live4Bikes

Sram Dub BB89.5/BB92 Bottom Bracket -Live4Bikes

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 SRAM DUB Bottom Bracket Series: Uniting Performance and Versatility for a Smooth Power Transfer


The SRAM DUB bottom bracket series has revolutionized the world of cycling with its innovative design and exceptional performance. Its primary role is to connect crankarms while ensuring the seamless transfer of power to the drivetrain. By engineering an oversized DUB spindle that works across all bottom bracket standards, SRAM has simplified crankarm compatibility, making it a game-changer for cyclists of all levels. In this article, we will explore the key features and benefits of the SRAM DUB bottom bracket series and delve into why it stands as the pinnacle of crankset performance. Additionally, we will shed light on why Live4Bikes is the ideal destination to purchase this cutting-edge component.

Simplifying Performance with SRAM DUB:

The SRAM DUB bottom bracket series is packed with features that set it apart from conventional systems. Let's take a closer look at its remarkable attributes:

  1. Gutter Seal Technology™: One of the standout features of the SRAM DUB series is the Gutter Seal Technology™, which offers improved sealing against the elements. This technology ensures a longer lifespan, safeguarding the bottom bracket from harsh weather conditions and prolonging its performance.

  2. Sealed Cartridge Bearings: The SRAM DUB bottom bracket utilizes sealed cartridge bearings that provide smooth rotation and reduce friction. The result is an efficient power transfer that enhances overall cycling performance.

  3. Oversized Spindle: The key innovation behind SRAM DUB is the oversized spindle, which is compatible with every bottom bracket standard. This simplifies crankarm compatibility, making it easier for cyclists to switch components and enjoy enhanced versatility.

  4. Lightweight Advantage: Compared to the GXP system, the SRAM DUB bottom bracket is significantly lighter, reducing overall bike weight. This translates to improved acceleration, easier climbs, and enhanced maneuverability.

PressFit 89/92 Specifications:

The SRAM DUB bottom bracket is available in PressFit 89/92 specifications, with the following details:

  • Frame Interface: BB89.5/BB92
  • Spindle Interface: SRAM DUB
  • Bottom Bracket Shell ID: PF41
  • Shell Width: 89mm, 92mm
  • Color: Black

Why Choose Live4Bikes:

Live4Bikes is a reputable online retailer known for providing cyclists with high-quality products and outstanding customer service. Here's why you should consider purchasing the SRAM DUB bottom bracket series from Live4Bikes:

  1. Genuine Products: Live4Bikes sources its products directly from trusted manufacturers, ensuring that you receive authentic SRAM DUB bottom brackets that meet the highest quality standards.

  2. Expertise in Cycling Components: Live4Bikes has an extensive selection of cycling components and accessories, catering to the diverse needs and preferences of cyclists.

  3. Competitive Pricing: Live4Bikes strives to offer competitive prices, ensuring that you receive excellent value for your investment.

  4. Customer-Centric Service: Live4Bikes is dedicated to providing reliable and customer-centric service. Their knowledgeable team is readily available to assist you with any inquiries or concerns, ensuring a smooth and satisfying shopping experience.


The SRAM DUB bottom bracket series represents a groundbreaking advancement in cycling technology, delivering enhanced performance, versatility, and durability. With features like Gutter Seal Technology™, sealed cartridge bearings, and an oversized spindle, this bottom bracket ensures a smooth and efficient power transfer to the drivetrain. When considering your purchase, Live4Bikes emerges as the preferred destination for acquiring this top-of-the-line component. With genuine products, an extensive selection, competitive prices, and outstanding customer service, Live4Bikes guarantees a seamless and satisfying shopping experience. Upgrade your cycling experience with the SRAM DUB bottom bracket series from Live4Bikes and enjoy the seamless application of power to conquer every cycling challenge with ease.

 How to Find the Correct Size Bottom Bracket for Your Bike

The bottom bracket is a critical component of your bicycle's drivetrain system, connecting the crankset to the frame. Selecting the correct size bottom bracket is essential for maintaining smooth pedaling and maximizing power transfer. In this article, we will guide you through the process of finding the right bottom bracket size for your bike and discuss the various types of bottom brackets commonly used in bicycles.

Understanding Bottom Brackets:
Before diving into the sizing process, let's briefly explore the different types of bottom brackets available. The choice of bottom bracket depends on your bicycle's frame design, crankset compatibility, and personal preferences. Here are a few common types:

1. Threaded Bottom Brackets:
Threaded bottom brackets are the traditional style, consisting of cups that screw into the frame's bottom bracket shell. They are commonly available in two versions: English/BSA (British Standard) and Italian. Threaded bottom brackets require a compatible frame and crankset.

2. Press-Fit Bottom Brackets:
Press-fit bottom brackets have become popular in recent years, particularly in modern carbon frames. Instead of threading, they rely on a tight press fit into the frame's bottom bracket shell. Common press-fit standards include BB86, BB90/92, PF30, and BB30. It's crucial to ensure compatibility between your frame and crankset when choosing a press-fit bottom bracket.

3. External Bottom Brackets:
External bottom brackets, often referred to as outboard bearings, are designed to be used with external bearing cranksets. They consist of two sets of bearings housed in cups that are threaded into the frame. External bottom brackets are available in different standards, such as Shimano Hollowtech II and SRAM GXP.

Finding the Correct Bottom Bracket Size:
To determine the correct bottom bracket size for your bike, follow these steps:

Step 1: Identify the Frame's Bottom Bracket Shell Type:
Check the specifications of your bicycle's frame to determine its bottom bracket shell type. Common types include threaded (English or Italian) or press-fit (BB86, BB90/92, PF30, BB30, etc.). This information is often provided by the manufacturer or can be measured directly.

Step 2: Determine the Axle Diameter:
The axle diameter is another crucial factor in selecting the right bottom bracket. It corresponds to the diameter of the crank spindle that passes through the bottom bracket bearings. Different cranksets have varying axle diameters, such as 24mm, 30mm, or 30/24mm (commonly known as DUB).

Step 3: Consider Compatibility:
Ensure that the bottom bracket you choose is compatible with your frame and crankset. Manufacturers often provide compatibility charts or guidelines to help you make the right selection. If you're uncertain, consult a professional bike shop for assistance.

Step 4: Seek Professional Advice:
If you are unsure about any aspect of selecting a bottom bracket, it's always a good idea to consult a bike shop or a knowledgeable mechanic. They can offer valuable expertise and help you make an informed decision based on your specific bike model and requirements.

Selecting the correct size bottom bracket for your bike is vital for maintaining optimal performance and compatibility between your frame and crankset. Understanding the various bottom bracket types, identifying your frame's specifications, determining the axle diameter, and considering compatibility are essential steps in the selection process. When in doubt, seek guidance from professionals who can provide personalized advice and ensure a smooth and reliable cycling experience. Remember, a well-chosen bottom bracket will contribute to a more enjoyable and efficient ride.

  Types of BB

 There are several types of bottom brackets (not "bottom brakes") used in bicycles. The bottom bracket is the component that connects the bicycle's crankset to the frame and allows it to rotate smoothly. Different types of bottom brackets have been developed over the years, each with its own design and compatibility with specific cranksets and frames.

Here are some common types of bottom brackets:

1. Threaded (BSC/English): This is the traditional type of bottom bracket, where the cups are threaded into the bicycle frame.

2. Press-fit: Press-fit bottom brackets do not have threads and are instead pressed directly into the frame. They are generally found in modern carbon frames and are known by various names like BB86, BB90, BB92, BB30, PF30, etc.

3. Square Taper: Square taper bottom brackets have a square-shaped spindle that fits into square holes in the crankarms. They were popular in the past but are less common in modern bicycles.

4. Octalink: Shimano's Octalink bottom brackets feature eight splines on the crankarm interface, providing a larger contact area for improved power transfer.

5. ISIS Drive: The ISIS Drive system also uses splines but with a 10-spline pattern on the crankarm interface.

6. Hollowtech II: This is a type of bottom bracket system developed by Shimano, where the bearings are housed in outboard cups.

7. BB30/PF30: These bottom brackets have larger-diameter spindles and use press-fit cups. BB30 spindles are 30mm in diameter, while PF30 spindles are 30mm but have a wider shell.

8. BB386EVO: A variant of BB30, BB386EVO bottom brackets have a wider bottom bracket shell and a 30mm spindle.

9. BBright: Developed by Cervelo, this bottom bracket system combines elements of BB30 and PF30.

It's important to note that the bicycle industry is constantly evolving, and new standards and bottom bracket types may have emerged since my last update. Additionally, different bike manufacturers may have their own proprietary bottom bracket systems. Always check the specifications of your specific bicycle model to know which type of bottom bracket it uses and to ensure compatibility with replacement parts or upgrades.