Apparel & Accessories 
Vehicles & Parts 
Toys & Games 
Sporting Goods 
Office Supplies 
Luggage & Bags 
Home & Garden 
Hardware 
Furniture 
Copied
Go to and paste the code at the checkout to enjoy
Shimano E-Tube Di2 External Junction B Box
Best Price:
Buy Shimano E-Tube Di2 External Junction B Box for $29.69 at @ Cambriabike.com
No coupon is required — this is the standard retail price.
Set a price drop alert to never miss an offer.
Price Comparison
| Seller | Contact Seller | List Price | On Sale | Shipping | Best Promo | Final Price | Volume Discount | Financing | Availability | Seller's Page |
|---|---|---|---|---|---|---|---|---|---|---|
|
BEST PRICE 1 Product Purchase
|
|
$32.99 | $29.69 |
|
$29.69 | See Site | Instock | Visit Store |
Product Details
Shimano E-Tube Di2 External Junction B Box The Shimano Di2 SM-JC40 is designed to connect SD50 E-tube wires along four points; front derailleur, rear derailleur, cockpit junction and battery mount. The B-Box is used to split the main wire from Junction A to the front and rear derailleurs. It can also be used to connect a seatpost mounted battery to the system. Specifically designed for externally mounted systems and mounts underneath bottom bracket shell - for External systems use SM-JC41.
Reviews
Questions & Answers
Fox Racing Vue Energy Goggle - Vivid - Black
$149.95
Schwalbe Big Apple Cruiser Wire Tire - Reflective
$35.34
Shimano M06-MX Metal Disc Brake Pad
$17.99
PraxisWorks MTB Bottom Bracket Converter
$75.00
Wheels Manufacturing Thin Flange Bottom Bracket Socket - Pro Kit
$229.00
Fox Racing Ranger MTB Short - With Liner - Dark Indigo
$59.95
Wheels Manufacturing Derailleur Hanger #59
$27.00
Sugoi Stash Cycling Jacket - Super Nova
$67.50
PNW The Coast Handlebar Gen 2 - Black
$44.25
Muc-Off Ebike Essentials Kit
$49.99
Mavic XA Elite Short Sleeve MTB Jersey - Macaw Green
$35.00
Troy Lee Designs Stage MIPS Full Face Helmet - Nova - Glo Red - 2023
$319.99
ION Scrub Amp Long Sleeve MTB Jersey - Tidal Green - 2022
$56.99
CamelBak Chillbak 18 Tote Bag - 3L - Monument Gray
$180.00
Shimano XTR Di2 M9050 2/3 Speed Front Shifter - OEM Packed - Black
$115.00
661 Comp Helmet Replacement Liner - Black
$3.99
Fox Racing Ranger MTB Glove - Black - 2024
$29.95
Race Face Stash 3L Hip Bag - Charcoal
$52.20
Teravail Cannonball Light & Supple 700c Cyclocross Tire - Tan Sidewall
$68.00
661 Evo AM Helmet - Metallic Black
$37.49
Pearl Izumi Elite InRCool Ltd Tri Singlet - Womens - Vaporize Dazzling Blue
$17.00
Fox Racing Rampage Full Face Helmet - Camo - Youth - White
$175.99
Fox Suspension 34 Air Shaft Assembly
$35.00
Formula CURA Disc Brake Kit - Black
$127.46
ION Seek MTB Short - Black - 2022
$53.99
Thomson Elite InLine Seatpost - Silver
$121.95
Leatt AllMtn 2.0 MTB Short - Womens - Purple - 2024
$53.99
Zixtro Flash Smartphone Case - Black
$17.50
Schwalbe G-One Speed Folding Cyclocross Tire
$81.84
Pearl Izumi Canyon MTB Short - With Liner - Twilight
$47.50
Arundel Mandible UD Bottle Cage - Gloss
$79.95
PNW Loam Lever 2 - iSpec II Mount - Black-Black
$74.00
Fizik Tempo - Microtex - Classic - Bar Tape - Black
$34.99
Sugoi Midzero Zip Top - Womens - Breeze
$65.99
Pearl Izumi Elite Low Cuff Sock - Womens - White - 2019
$2.40
