Shimano SM-JC40 Di2 External Frame Junction Box 4-Port

Shimano JC40 Di2 External Frame Junction Box 4-Port Contact us thru eBay with any questions, we're here to help! Our experts are here to help M-F! Store Home Shipping Info About Us FAQ Returns and Exchanges Feedback WHY SHOP WITH US? Free USA Shipping No minimum order International Shipping We ship globally Real Time Inventory No backorders Bicycle Experts Knowledgable staff 100% Satisfaction Guarantee We're only happy when you are! STORE CATEGORIES Apparel» Accessories Base Layers Bibs & Shorts Casual Gloves Hats & Eyewear Jackets & Outerwear Jerseys & Vests Rain Gear Shoes & Socks Winter Gear Backpacks & Bags Baskets & Racks Bells & Horns BMX» Bottom Brackets Brake Levers Chains Cranks Grips Handelbars Pedals Saddles Seatposts Stems Tires Tubes Wheels All BMX Commuter & Urban» Brake Levers Brakes Fenders Handlebar Tape Handlebars Lights Pedal/Clips/Straps Combo Deals Pedals Saddles Stems Tires Toe Clips Toe Straps Top Tube Pads All Commuter/Utility Computers Cyclocross» Brake Levers Brakes Cranks Tires Cyclocross Hydration Bags & More Lights & Safety Locks & Security» Accessory Cables Chains U-Locks (Mini) U-Locks Long U-Locks Standard All Locks & Security Mountain» Bottom Brackets Brake Levers Brakes› Disc V-Brake Cassettes Chains Cranks Derailleurs, Front Derailleurs, Rear Forks› ..charge on all items except oversize items such as wheels. We do offer 5% discount on more than one wheelset. OTHER SHIPPING NOTES We generally ship all orders within 2-5 days of receiving your order. We ship Monday thru Friday every day other than USA federal holidays, weekends or collateral holidays. Please check our Shipping Info Page for more info. We Accept PayPal, Moneybookers, and direct credit card payment through eBay. Cleared payment is expected within 2 days of purchase to guarantee availability. Please contact us with any questions. All sales on NEW items are eligible for returns/exchanges. USED or clearly defined BLEMISHED (see item condition above) goods are not returnable unless defective. Please see our Returns and Exchanges page for more information. We are available between the hours of 10am-6pm EST Monday through Friday except USA Federal Holidays. We try to respond to all emails and voicemails within 4 hours during our normal business hours. This will vary on Mondays and the day after holidays. All products sold by Bell's Bike Shop carry the full manufacturer's warranty. For warranty details, please message us. We are an authorized dealer for every product that we sell. If you don't see the exact item you are looking for, please contact us. We stock thousands of products! Every effort is made to display this item accurately. Due to different displays, software, and lighting conditions beyond our control, the item pictured may appear slightly different. This item is in stock and available to ship. If there is some discrepancy, we will notify you as soon as we can. Copyright Bells Bike Shop. All rights reserved.

• Mounts underneath the bottom bracket shell
• Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount
• All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
• Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/