🚴♂️ Elevate Your Ride with SHIMANO's Di2 Junction Box!
The SHIMANOE-Tube Di2 Junction Box is designed for cyclists seeking to upgrade their ride with cutting-edge technology. Compatible with 2x10 cranksets and Shimano Ultegra Di2 components, this junction box offers a compact design, weighing just 0.03 pounds. With a 2-year warranty, it promises durability and reliability for your cycling adventures.
| Item Package Dimensions L x W x H | 4.4 x 2.2 x 1.3 inches |
| Package Weight | 13.61 g |
| Item Dimensions LxWxH | 3 x 4 x 2 inches |
| Brand Name | SHIMANO |
| Color | One Color |
| Number of Items | 1 |
| Manufacturer | Shimano |
| Part Number | SH4255 |
| Model Year | 2012 |
| Size | Internal/SM-JC41 |
| Sport Type | Cycling |
C**S
expensive but functional
It is an expensive item for its size but essential to install Di2
H**X
Internal wiring junction box - picture is wrong
If you are going to run your Di2 cables inside the frame tues, this is the part you want. The picture is of the external mount box, but the internal box is the one I received. Just remove your crank, plug in your 4 wires, tuck this back into the frame tube, reinstall the protector sleeve and crank and you are all set. A very clean install of shifting perfection!!
C**L
Works fine
I decided to build my new road bike with Di2 electronics. I didn't want to drop $1,500 at one time on the kit so I bought one component at a time. It all came together nicely and all components work fine. I highly recommend this product.
T**K
Genuine Shimano
Works great
R**O
Works good
Wow this thing is so light and tiny! It does it's job, nothing fancy.Good seller...
F**A
Gracias
Gracias
S**E
Five Stars
perfect
F**R
A necessary part for Di2
Not much to say about this junction box. It’s a necessary part for installs. This allows you to easily stuff it in the seat tube or down tube to conceal it. I added foam insulation around the ends to make it quieter inside the tubes.
Trustpilot
3 weeks ago
1 day ago
