Shimano Octalink 73x118mm Black Bottom Bracket -Live4bikes
Shimano Octalink 73x118mm Black Bottom Bracket -Live4bikes
Shimano Octalink 73x118mm Black Bottom Bracket -Live4bikes

Shimano Octalink 73x118mm Black Bottom Bracket -Live4bikes

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 Embrace Superior Performance with Octalink V2 Compatible Bottom Bracket


Cycling enthusiasts know that every component of their bike plays a crucial role in optimizing performance. Among these, the bottom bracket holds a special place, as it directly impacts pedaling efficiency and overall smoothness of the ride. For those seeking top-notch quality and seamless compatibility, the Octalink V2 compatible bottom bracket stands out as an exceptional choice. In this article, we'll explore the benefits of this advanced bottom bracket featuring labyrinth seals, BSA threading, a 22mm hollow spindle, and carrying the Shimano Reference Number: BB-ES51. Moreover, we'll delve into why choosing Live4bikes for your purchase can elevate your cycling experience even further.

The Octalink V2 Bottom Bracket: Features and Advantages

  1. Labyrinth Seals for Ultimate Protection

One of the standout features of the Octalink V2 compatible bottom bracket is the incorporation of labyrinth seals. These seals serve as a formidable barrier against contamination, efficiently keeping dust, dirt, and moisture away from the sensitive bearings. By preserving the integrity of the bearings, these labyrinth seals ensure smooth and reliable operation, even in challenging weather conditions or off-road adventures. This level of protection translates into extended longevity for your bottom bracket, reducing the need for frequent replacements and providing peace of mind during your rides.

  1. Standard BSA Threading for Wide Compatibility

The bottom bracket's threading plays a critical role in compatibility with various bicycle frames. The Octalink V2 bottom bracket employs the widely-used British Standard Thread (BSA) for threading, making it compatible with a wide range of road and mountain bike frames. This ensures that you can easily install and replace the bottom bracket without worrying about compatibility issues. Additionally, BSA threading simplifies maintenance and upgrades, allowing cyclists to customize their bikes effortlessly.

  1. 22mm Hollow Spindle for Improved Performance

The Octalink V2 bottom bracket features a 22mm hollow spindle, optimizing both strength and weight. The hollow design significantly reduces the spindle's weight without sacrificing durability, resulting in an improved power-to-weight ratio. The stiffer and lighter spindle enhances power transfer during pedaling, providing a noticeable boost in performance. Whether you're a casual rider or a seasoned racer, the 22mm hollow spindle ensures a responsive and efficient cycling experience.

  1. Shimano Reference Number: BB-ES51

The Shimano Reference Number: BB-ES51 is a testament to the bottom bracket's pedigree. Shimano, a renowned name in the cycling industry, is synonymous with precision engineering and high-quality components. The BB-ES51 designation signifies that this bottom bracket meets Shimano's exacting standards, ensuring reliability and performance that riders can trust. When choosing a Shimano-approved product like the Octalink V2 compatible bottom bracket, you can be confident in its design and manufacturing excellence.

Why Purchase from Live4bikes?

  1. Genuine Products and Worry-Free Warranty

Live4bikes is a reputable retailer committed to providing cyclists with genuine products. When purchasing the Octalink V2 compatible bottom bracket from Live4bikes, you can rest assured that you're receiving an authentic Shimano product. Furthermore, Live4bikes stands behind the quality of their offerings, providing a comprehensive warranty that covers manufacturing defects and ensures customer satisfaction.

  1. Expert Support and Advice

Live4bikes takes pride in its team of cycling experts, readily available to offer personalized advice and support. Whether you need assistance with installation, maintenance, or selecting the right bottom bracket for your bike, their knowledgeable staff will guide you through the process. This level of customer service ensures that you make informed decisions, maximizing the benefits of your Octalink V2 bottom bracket.

  1. Hassle-Free Online Shopping and Fast Shipping

Shopping for your cycling gear should be a convenient and enjoyable experience. Live4bikes' user-friendly website makes browsing and purchasing a breeze. With their efficient shipping process, you can expect timely delivery, reducing downtime and allowing you to get back on the saddle in no time.


The Octalink V2 compatible bottom bracket with labyrinth seals, BSA threading, a 22mm hollow spindle, and the Shimano Reference Number: BB-ES51, offers exceptional benefits for cyclists seeking optimal performance and reliability. Its innovative features ensure long-lasting protection, smooth pedaling efficiency, and compatibility with a wide range of frames. By choosing to purchase from Live4bikes, you not only gain access to a genuine Shimano product but also benefit from expert advice, hassle-free shopping, and fast shipping. Upgrade your cycling experience today with the Octalink V2 compatible bottom bracket from Live4bikes and embark on your rides with newfound confidence and joy.


 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.