A Real Brick And Mortar Retail Bicycle Shop with people you can talk to!
Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST)
Video will open in a new window
Sunlite SL-55 Square Taper BSA Bottom Bracket | Sealed Bearings, Chromoly Spindle
Reference Number: 3MV6EM
Upgrade your bike's performance with the Sunlite SL-55 Square Taper JIS 73x127 Spindle BSA Bottom Bracket, engineered for durability, smooth operation, and reliable power transfer. Designed with high-quality materials and innovative engineering, this sealed bearing bottom bracket is perfect for road bikes, mountain bikes, and commuter cycles.
Materials & Construction:
Constructed with an durable alloy shell and alloy cups, the Sunlite SL-55 provides a lightweight yet robust framework that resists corrosion and wear. The chromium-molybdenum (chromoly) spindle ensures high tensile strength, allowing for efficient pedaling and power transfer under demanding riding conditions.
Performance & Engineering:
Featuring sealed bearings, this bottom bracket effectively prevents dirt, water, and debris from entering, minimizing maintenance requirements and extending the lifespan of your drivetrain components. The precise JIS (Japanese Industry Standard) threading ensures compatibility with most standard BSA (English threaded) frames, delivering a secure, wobble-free fit.
Components & Technology:
The combination of alloy cups and shell with sealed bearings makes for a smooth, reliable, and quiet ride. The Sunlite SL-55 embodies engineering excellence ideal for everyday cyclists and serious riders seeking consistent performance and durability.
Style & Use Case:
Designed for versatile use, this bottom bracket is compatible with 73x127mm spindle sizes, making it suitable for a broad range of bicycle styles-including road, mountain, and hybrid bikes. Its sleek, corrosion-resistant finish complements any bike build, while its performance-oriented design enhances overall cycling efficiency.
Innovative Features:
Sealed bearing technology sets the Sunlite SL-55 apart from standard bottom brackets, providing enhanced protection against the elements and contaminants. This ensures a longer service life, reduced maintenance, and trustworthy power transfer ride after ride.
Upgrade your bicycle's bottom bracket with the Sunlite SL-55 Square Taper JIS 73x127 Spindle BSA Bottom Bracket - the perfect blend of durability, performance, and reliability for cycling enthusiasts and everyday riders alike.
- High-performance BSA bottom bracket featuring sealed bearings for enhanced durability and reduced maintenance, ideal for demanding cycling conditions.
- Constructed with premium alloy shells and cups, providing optimal corrosion resistance and lightweight strength for long-lasting reliability.
- Equipped with a precision-machined chromoly spindle, offering improved stiffness and power transfer for efficient pedaling and responsive ride feel.
- Designed for square taper JIS interfaces, ensuring universal compatibility with a wide range of road and mountain bike cranksets.
- Innovative sealed bearing technology minimizes dirt ingress and water intrusion, extending the lifespan of your bottom bracket and maintaining smooth operation over time.
Why 365 Cycles?
365 Cycles is an Authorized Sunlite Dealer, and we offer the Full Sunlite Warranty!
Fast Shipping!
Professional Customer Service- available 7 days a week
Check out our 200,000+ amazing reviews!
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
- 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.
