15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes!
15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes! 15% On Rim Brake Bikes!
Deal

SHIMANO B Di2 EW-JC304 4 - 12speed junction box

SKU: 14340
£35.00 GBP
£43.00 GBP
SAVE 19 %
In stock
Free shipping available if you spend above £137.00 GBP.
Description

The Shimano B Di2 EW-JC304 4 Junction Box is an essential component for combining Shimano STEPS and Di2 systems, enabling seamless internal cable routing. This distributor connects EW-SD300 cables to Di2 and STEPS components, simplifying the wiring process and improving your bike's electronic setup.

This junction box is built with Shimano's E-Tube technology and features four ports for convenient connection of SD300-based components, enabling seamless communication between your Di2 shifters, derailleurs, and other compatible systems. With its tiny form factor, the EW-JC304 is ideal for internal wire routing, keeping your setup tidy and efficient.

Specifications:

  • Designed to work with Shimano STEPS and Di2 components, ensuring seamless integration of electronic shifting and e-bike systems
  • Features 4 E-Tube SD300 connections enable simple and dependable cable routing between components
  • Ideal for internal cable routing, which helps to keep the bike frame clean and orderly
  • Connects SD300-based components to ensure seamless communication between Di2 shifters, derailleurs, and other system components
  • 32mm length allows for a clean and discreet installation
  • Has a diameter is 6.9 x 11.5
  • Available in black color
  • Genuine Shimano replacement part
View more

The Shimano B Di2 EW-JC304 4 Junction Box is an essential component for combining Shimano STEPS and Di2 systems, enabling seamless internal cable routing. This distributor connects EW-SD300 cables to Di2 and STEPS components, simplifying the wiring process and improving your bike's electronic setup.

This junction box is built with Shimano's E-Tube technology and features four ports for convenient connection of SD300-based components, enabling seamless communication between your Di2 shifters, derailleurs, and other compatible systems. With its tiny form factor, the EW-JC304 is ideal for internal wire routing, keeping your setup tidy and efficient.

Specifications

  • Designed to work with Shimano STEPS and Di2 components, ensuring seamless integration of electronic shifting and e-bike systems
  • Features 4 E-Tube SD300 connections enable simple and dependable cable routing between components
  • Ideal for internal cable routing, which helps to keep the bike frame clean and orderly
  • Connects SD300-based components to ensure seamless communication between Di2 shifters, derailleurs, and other system components
  • 32mm length allows for a clean and discreet installation
  • Has a diameter is 6.9 x 11.5
  • Available in black color
  • Genuine Shimano replacement part

Introduction

We have sorted all our products into four general categories:


- ProOwned® Approved
- Pro's Choice
- Fan's Choice
- Essentials

We have done this to make it easier for you to know what type of item you are shopping for.

ProOwned® Approved
An authentic and original product sourced directly from a cycling team or rider and can be in different conditions — brand new, as new or pre-owned. We make sure to quality check all items and ensure that you always receive a product in good condition.

Pro's Choice
High-end and top-quality products sourced from carefully selected brands & partners. These products are often a model or type that is preferred to use in professional cycling.

Fan's Choice
Products made for cycling fans. Team merchandise consisting of clothing, accessories and gift products supporting your favourite team.

Essentials
The products you can not live without on your ride. This category is made to cover your basic needs on a bike ride and preparations. Our goal is to provide you with value for money no matter what you are shopping for.

Introduction
Our ProOwned® Approved products are original from professional cycling teams and cyclists. On each of these products, we inform the item's condition, along with photos showing the signs of use.

Most of the products are brand new, and we always make sure to offer products in good functional condition. The items that cannot be sold are donated to charity.

If you doubt the product's condition or packaging, please feel free to contact us.

Brand new
The item has not been used yet. The item can be both with and without original packaging, as the item may have been part of a cycling team's preparations.

As new
The item has been unpacked, tested, washed once or has marks from storage. However, this item has never been used on a bike ride.

Pre-owned
A professional cyclist has used the item but has plenty of miles left. The item will always be checked for defects, and you will receive it clean and in functional condition.

Similar to this product

You may also like

Customer care

Do you need help?

We have many years of experience within cycling. Feel free to contact us if you have any questions.

We answer emails within 24 hours.

Item added to cart

SHIMANO B Di2 EW-JC304 4 - 12speed junction box
SHIMANO B Di2 EW-JC304 4 - 12speed junction box SKU: 14340 Size: Default Title
£35.00 GBP GBP
Go to cart