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Promax SC-1 Square Taper BSA Bottom Bracket 68x108mm Hollow Chromoly Spindle
Reference Number: 8N88C6
Upgrade Your Bicycle Performance with the Promax SC-1 Square Taper JIS BSA Bottom Bracket - 68x108mm Spindle for Cranksets
Enhance your cycling experience with the Promax SC-1 Square Taper JIS BSA Bottom Bracket, engineered for durability, smooth performance, and lightweight efficiency. Designed specifically for traditional square taper cranksets, this bottom bracket is ideal for road bikes, mountain bikes, and commuter bicycles that prioritize proven simplicity and reliable power transfer.
Materials & Engineering Excellence:
Constructed with precision-machined alloy cups for enhanced durability and a forged, CNC-machined aluminum interface, the SC-1 bottom bracket ensures longevity and resistance to wear. The hollow chromoly spindle reduces weight without sacrificing strength, delivering a balanced combination of lightweight design and structural integrity. Sealed bearings provide superior protection against dirt, mud, and water ingress, maintaining optimal performance in all riding conditions.
Components & Technology:
Featuring a high-quality JIS (Japanese Industrial Standard) square taper interface, the SC-1 ensures a secure fit with compatible cranksets for efficient power transfer. The composite center spacer with integrated seal offers added protection and smooth operation. Whether you're upgrading your existing setup or building a new bike, this bottom bracket provides precision compatibility with 68mm shell widths and a 1.37-inch shell diameter.
Style & Use Case:
With its sleek black finish, the Promax SC-1 Bottom Bracket complements a variety of bike styles, from classic road bikes to rugged mountain bikes. Its straightforward installation and lightweight design make it perfect for riders seeking dependable performance for daily commuting, long-distance rides, or off-road adventures.
Innovative & Differentiating Features:
- Hollow chromoly spindle enhances strength-to-weight ratio
- Precision CNC-machined alloy cups for consistent performance
- Sealed bearings for increased durability and minimal maintenance
- Ideal for JIS square taper cranksets and BSA threaded frames
- Lightweight design weighing just 246 grams, optimized for performance
Specifications:
- Shell I.D.: 1.37 inches
- Frame Compatibility: English BSA / Threaded (68mm shell width)
- Spindle Length: 108mm
- Spindle Interface: Square Taper JIS
- Material: Chromoly steel spindle, alloy cups
- Color: Black
- Weight: 246 grams
Upgrade your bicycle with the Promax SC-1 Square Taper JIS BSA Bottom Bracket for unmatched reliability, superior power transfer, and a lightweight profile. Perfect for cyclists looking for a high-performance bottom bracket that combines traditional engineering with modern durability. Shop now to experience smoother rides and enhanced bike responsiveness!
- High-quality, lightweight design ideal for classic and vintage bikes, offering reliable performance with a CNC-machined alloy construction for durability and corrosion resistance.
- Features a hollow chromoly spindle that enhances strength while minimizing weight, providing efficient power transfer for smooth pedaling and responsive riding.
- Engineered with precision sealed bearings and a composite center seal, ensuring long-lasting durability, reduced maintenance, and excellent protection against dirt and water ingress.
- Compatible with standard 68x108mm BSA (English) bottom bracket shells using JIS square taper interface, making installation straightforward and widely compatible with various bike frames.
- Stylish black finish combined with precision CNC-machining and forged alloy cups make the SC-1 bottom bracket a perfect upgrade for performance-oriented cyclists seeking a blend of style, simplicity, and reliability.
| Item Specifications | |
|---|---|
| Bottom Bracket Shell I.D. | 1.37 |
| BB/Frame Interface | English |
| BB Shell Width (mm) | 68 |
| Weight | 246 |
| Spindle Interface Type | Square Taper JIS |
| Spindle Length | 108 |
| Defined Color | Black |
Why 365 Cycles?
365 Cycles is an Authorized Promax Dealer, and we offer the Full Promax 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
- 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.
