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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 Interface | English |
| BB Shell Width (mm) | 73 |
| Weight | 270 |
| Spindle Interface Type | Shimano Octalink V2 |
| Spindle Length | 121 |
| Defined Color | Gray |
Why 365 Cycles?
365 Cycles is an Authorized Shimano Dealer, and we offer the Full Shimano Warranty!
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Shipping & Handling
Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.Please allow 1-2 business days for your order tracking to update.
- Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
- Friday afternoon -Sunday orders ship the following Monday
- Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.
Combined Shipping Discounts
To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.- Be sure you are using the US site: https://www.ebay.com
- Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
- Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
- Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
- You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.
Returns
365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.
Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.
Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.
If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!
Exchanges
If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.
