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Shimano BB-ES51 Octalink V2 Bottom Bracket - 68x121mm BSA, Threaded, Black
Reference Number: 1N90C7
Upgrade your cycling performance with the Shimano BB-ES51 Octalink V2 68x121mm Spline Spindle BSA (English) Bottom Bracket-designed for durability, efficiency, and seamless integration with your Shimano cranksets. Crafted from high-quality materials and engineered with Shimano's renowned precision, this bottom bracket ensures smooth power transfer and reliable performance on all your rides.
Materials & Construction:
Made from robust steel components with a corrosion-resistant black finish, the Shimano BB-ES51 offers long-lasting durability in various riding conditions. Its precision-machined spline interface ensures an exact fit, minimizing wear and maximizing efficiency.
Performance & Engineering:
Engineered specifically for Octalink V2 spline cranksets, this bottom bracket delivers improved stiffness and power transfer. The 68mm shell width and 121mm spindle length are optimized for compatibility with road, mountain, and hybrid bikes, providing a stable and responsive ride. The sealed design shields internal bearings from dirt, water, and grit, reducing maintenance and extending component lifespan.
Components & Technology:
Featuring Shimano's tried-and-true Octalink V2 technology, this bottom bracket provides a secure, easy-to-install spline interface that enhances crankset stability. While crankarm fixing bolts are not included, pairing this bottom bracket with compatible Shimano octalink cranksets ensures optimal function and performance.
Style & Use Case:
Designed with a sleek black finish, the Shimano BB-ES51 complements a variety of bike styles-from mountain biking to touring and urban commuting. Its BSA (English) interface makes it a versatile choice for bikes with standard threaded frames, offering a reliable upgrade for both performance-focused cyclists and daily riders.
Key Features:
- Compatible with Shimano Octalink V2 spline cranksets
- Fits 68mm wide bottom bracket shells with BSA (English) threading
- Precise 121mm spindle length for balanced leverage and pedaling efficiency
- Durable steel construction with corrosion-resistant coating
- Easy to install and maintain for prolonged performance
Optimize your bike's drivetrain with the Shimano BB-ES51 Octalink V2 Bottom Bracket-engineered for smooth operation, reliability, and enduring performance. Perfect for riders seeking a high-quality, budget-friendly bottom bracket that guarantees seamless compatibility and long-term durability.
- Designed with precision-made materials for durability and smooth performance in crankset assembly.
- Engineered with Shimano Octalink V2 technology, ensuring reliable power transfer and compatibility with a wide range of cranksets.
- Features a 68mm shell width and 121mm spindle length, optimized for BMX, mountain bikes, and touring bikes with BSA (English) frame standards.
- Constructed with lightweight aluminum components, reducing bike weight without sacrificing strength or rigidity for enhanced riding efficiency.
- An ideal choice for cyclists seeking professional-grade bottom brackets with easy installation, consistent performance, and a sleek black finish for a stylish, race-ready look.
| Item Specifications | |
|---|---|
| Bottom Bracket Shell I.D. | 1.37 |
| BB/Frame Interface | English |
| BB Shell Width (mm) | 68 |
| Weight | 270 |
| Spindle Interface Type | Shimano Octalink V2 |
| Spindle Length | 121 |
| Defined Color | Black |
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.
