External BSA, English threaded bottom brackets featuring anodized aluminum cups with Enduro sealed bearings . Mountain versions for 73mm or 68mm bottom bracket shells or Road specific versions for 68mm bottom bracket shells . Offered in 24mm (, FSA, Race Face, etc), GXP 24/22mm (SRAM/Truvativ), 30mm interface, SRAM DUB and Praxis M30/28 . Compatible with 30mm diameter cranks with a spindle length of at least 104mm . Angular contact: Enduro ABEC 5 angular contact bearings . Base: Enduro ABEC 3 sealed bearings . 92-105g depending on modelAllows the use of cranks that use 24mm spindles such as Hollowtech II, Full Speed Ahead, RaceFace EXI etc. to be used with BSA threaded frames. Durable and lightweight machined aluminum cups for outboard set ups. Features Enduro ABEC-3 sealed

Wheels Manufacturing BSA Bottom Bracket Hollowtech II, ABEC-3 Sealed Bearings

Reference Number: 3MV2EM

Elevate your mountain biking or road cycling setup with the Wheels Manufacturing BSA Bottom Bracket - Hollowtech II Spindle, ABEC 3 in striking Red. Designed for durability, performance, and style, this high-quality bottom bracket is engineered to meet the demands of serious riders seeking reliable, smooth operation on every ride.

Materials & Construction

Crafted from lightweight, precision-machined anodized aluminum cups, this bottom bracket combines durability with a sleek aesthetic. Featuring anodized finishes not only enhance corrosion resistance but also add a vibrant red color to your bike's drivetrain, making it stand out. The sealed Enduro bearings, including ABEC 3 precision seals and Enduro ABEC 5 angular contact bearings, provide exceptional longevity and smooth power transfer, even under tough riding conditions.

Performance & Engineering

Built for optimal performance, this bottom bracket supports 24mm spindle interfaces compatible with Hollowtech II, RaceFace EXI, FSA MegaExo, and more. Its sealed bearings ensure consistent, smooth operation, reducing friction and extending service life. The design accommodates both 68mm and 73mm shell widths, making it versatile for mountain and road frames alike. Weighing approximately 92-105 grams depending on configuration, it offers a lightweight yet robust solution that won't compromise your bike's agility.

Components & Technology

Includes comprehensive installation components-two durable aluminum cups with integrated bearings, multiple aluminum spacers for precise fitment, and Enduro silicone dust seals to keep dirt and moisture out. The bottom bracket is fully serviceable, allowing for easy maintenance and longevity. For compatibility, a 16-notch x 48.5mm tool (not included) is recommended for installation and removal, ensuring a secure fit every time.

Style & Use Case

Available in striking red, this bottom bracket adds a pop of color to your drivetrain while offering professional-grade performance. Whether you're tackling rugged mountain trails with your 68mm or 73mm shell frame or upgrading your road bike for a smoother ride, this bottom bracket provides reliable support for 24mm crank spindles, including Hollowtech II and RaceFace systems. Its sleek, anodized finish combines style with functionality, making it ideal for both competitive cycling and recreational adventures.

Innovative Features & Benefits

- Compatibility with multiple crank interfaces ( Hollowtech II, RaceFace EXI, FSA MegaExo)

- Anodized aluminum cups for enhanced durability and corrosion resistance

- Enduro sealed bearings (ABEC 3 and ABEC 5 angular contact) for smooth operation and increased lifespan

- Fully serviceable design allows for easy maintenance and extended use

- Versatile for 68mm and 73mm bottom bracket shells, suitable for mountain and road bikes

Upgrade your bicycle's performance with the Wheels Manufacturing BSA Bottom Bracket - Hollowtech II Spindle, ABEC 3, Red. Engineered for precision, built for durability, and styled to impress, this bottom bracket ensures your ride remains smooth, efficient, and visually striking.

  • High-performance external BSA bottom bracket designed for Hollowtech II and other 24mm spindle cranks, ensuring compatibility with a wide range of mountain and road bike frames.
  • Constructed with durable anodized aluminum cups and Enduro sealed bearings (ABEC-3 and ABEC-5) for smooth, long-lasting operation in demanding riding conditions.
  • Engineered for precise fit and easy maintenance, featuring fully serviceable components and multiple spacers to accommodate 68mm and 73mm bottom bracket shells for versatile use.
  • Optimized for lightweight performance with a total weight of approximately 105g, combining strength with minimal added rotational weight to enhance pedal efficiency and bike handling.
  • Stylish red anodized finish adds a distinctive look, making this bottom bracket a perfect upgrade for those seeking both performance and aesthetic appeal on their mountain or road bike.
Item Specifications
Bottom Bracket Shell I.D.1.37
BB/Frame InterfaceEnglish
BB Shell Width (mm)68
BB Shell Width (mm)73
Weight105
Spindle Interface Type Hollowtech II
Spindle Interface TypeRaceFace EXI
Spindle Interface TypeFSA MegaExo
Defined ColorRed
ShellBSA
ColorRed
Model NameMountain Base
Spindle Interface24mm
Shell ID33.6mmx24tpi
Width68/73mm

Why 365 Cycles?

365 Cycles is an Authorized Wheels Manufacturing Dealer, and we offer the Full Wheels Manufacturing Warranty!

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365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.

At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.

We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.





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
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  • 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.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
  5. 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.



BTBK0915 .

Company Details

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

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