Shimano BB-ES300 Octalink V2 Bottom Brackets

Fits Shimano Octalink V2 Spline Cranksets. Crankarm fixing bolts not included.

Item Specifications: Weight, 270, BB/Frame Interface, English, Spindle Interface Type, Shimano Octalink V2, BB Shell Width, 73, Defined Color, Gray, Bottom Bracket Shell I.D., 1.37", Spindle Length, 121,

Shimano BB-ES300 Octalink V2 Bottom Bracket 73x121mm BSA, Durable Steel Spindle

Reference Number: 4N71C8

Upgrade Your Bicycle's Performance with the Shimano BB-ES300 Octalink V2 Bottom Bracket - 73x121mm Spline Spindle, BSA (English)

Optimize your ride with the Shimano BB-ES300 Octalink V2 Bottom Bracket, engineered for durability, precision, and seamless integration. Crafted to fit Shimano Octalink V2 spline cranksets, this high-quality bottom bracket ensures smooth pedaling efficiency and reliable performance for a variety of mountain bikes, hybrids, and road bicycles.

Materials & Engineering

Constructed from robust, lightweight materials, the Shimano BB-ES300 features corrosion-resistant components designed to withstand the rigors of everyday cycling. Its durable steel spindle and precision-machined bearing surfaces deliver long-lasting performance. With a total weight of just 270 grams, this bottom bracket balances strength with minimal weight addition, enhancing overall bike agility.

Components & Technology

Utilizing Shimano's proven Octalink V2 spline interface, this bottom bracket guarantees a secure crankset attachment with maximum power transfer. The 121mm spindle length and 73mm shell width are optimized for a variety of frame geometries, providing a perfect fit for English (BSA) threaded shells. Designed for ease of installation, it supports efficient maintenance and serviceability, making it ideal for both professional bike shops and avid cyclists.

Style & Use Case

Featuring a sleek gray finish, the Shimano BB-ES300 complements a range of bike styles from rugged mountain bikes to versatile hybrids. Its proven engineering makes it suitable for daily commuting, mountain biking, and leisure riding. Whether upgrading an existing setup or building a new drivetrain, this bottom bracket delivers smoothness, reliability, and compatibility.

Innovative & Differentiating Features

- Compatible specifically with Shimano Octalink V2 spline cranksets for secure, efficient power transfer

- Designed for English BSA threaded frames, ensuring broad compatibility

- Corrosion-resistant construction for enhanced longevity in various riding conditions

Enhance your cycling experience with the Shimano BB-ES300 Octalink V2 Bottom Bracket - the reliable choice for optimized performance, durability, and compatibility. Perfect for riders seeking a seamless upgrade or replacement to maintain peak pedaling efficiency and bike responsiveness.

  • High-quality, SEO-friendly product bullets for the Shimano BB-ES300 Octalink V2 Bottom Bracket:
  • Designed for Shimano Octalink V2 spline cranksets, ensuring optimal compatibility and smooth power transfer for your mountain and road bike applications.
  • Constructed with durable materials and precision engineering, this bottom bracket provides reliable performance and longevity under demanding riding conditions.
  • Features a 73mm shell width and 121mm spindle length, perfectly suited for standard BSA (English) threaded frames, offering a secure fit and easy installation.
  • Equipped with Shimano's innovative Octalink V2 technology, this bottom bracket ensures efficient load distribution and reduced pedal creaking over time.
  • Stylish gray finish complements a wide range of bike styles, making it an ideal choice for both performance-minded cyclists and casual riders seeking increased drivetrain efficiency.
Item Specifications
Bottom Bracket Shell I.D.1.37
BB/Frame InterfaceEnglish
BB Shell Width (mm)73
Weight270
Spindle Interface TypeShimano Octalink V2
Spindle Length121
Defined ColorGray

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Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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