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Shimano SM-JC41 Di2 Internal Frame Junction Box | 4-Port E-Tube Connectivity for Electronic Shifting
Reference Number: 9N05J9
Upgrade your Shimano Di2 eTap electronic shifting with the Shimano SM-JC41 Di2 Internal Frame Junction Box-an essential component engineered for seamless integration and reliable performance. Crafted from high-quality, durable materials, this 4-port junction box features precision engineering to ensure smooth communication between your electronic drivetrain components.
Designed specifically for internal frame installation, the SM-JC41 Junction Box connects via SD50 E-tube wires to four critical points: front derailleur, rear derailleur, cockpit junction box, and battery mount. This integrated system promotes a clean, streamlined bike frame setup while maintaining excellent electrical conductivity and minimal weight. Its robust construction ensures long-lasting performance in various riding conditions, from casual rides to intense competitive events.
Key features include compatibility with all Shimano Di2 components-ensuring uniform firmware versions for flawless operation. Use Shimano's Di2 system checker available at https://e-tubeproject.shimano.com/ to easily update component firmware, preventing malfunctions and optimizing shifting precision. The SM-JC41 Junction Box facilitates quick, secure connections, enabling riders to enjoy crisp, responsive shifting and enhanced electronic system reliability.
Ideal for mountain biking, road cycling, and gravel adventures, this internal frame junction box is perfect for cyclists seeking a sleek, high-performance electronic shifting setup. Its innovative design and reliable technology make it the perfect choice for upgrading or building a Shimano Di2 electronic drivetrain with optimized connectivity and durability.
Upgrade your bike's electronic wiring system with the Shimano SM-JC41 Di2 Internal Frame Junction Box-where innovative engineering meets superior performance for a precise, dependable shifting experience.
- Designed with durable aluminum construction for reliable performance and longevity in harsh cycling conditions, ensuring a secure internal connection.
- Precision-engineered to seamlessly connect four key Di2 components-including front and rear derailleurs, cockpit junction box, and battery mount-streamlining electrical management within your bike frame.
- Utilizes advanced SD50 E-tube wiring technology for clean, efficient signal transmission and straightforward installation, optimizing internal cable routing for a sleek bike aesthetic.
- Compatible with Shimano Di2 electronic shifting systems, supporting firmware synchronization across all connected components to prevent malfunctions and maintain optimal shifting performance.
- Features innovative internal mounting design allowing discreet integration within the bicycle frame, enhancing bike aesthetics while providing easy access for updates via the Di2 system checker tool.
Why 365 Cycles?
365 Cycles is an Authorized Shimano Dealer, and we offer the Full Shimano 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.
