Why We Like The Shimano EW-JC304 Di2 4-Port Junction
When building our dream bike, we don't want to worry about shifter battery life down the road. The Shimano EW-JC304 Di2 4-Port Junction allows us to connect both shifters directly to the battery for 50% more battery life.
Details
- 4-Port junction box for Shimano's Di2 systems
- Sits inside the steerer tube to connect the shifters directly to the battery
- Allows up to 50% extra battery life for wireless shifters
- Item #SHIU1GE
- Compatibility
- EW-SD300
- Activity
- road cycling
- Manufacturer Warranty
- 2 years
- Manufacturer Part Number
- EW-JC304
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Cancer and Reproductive Harm - P65Warnings.ca.gov
