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Shimano
EW-JC304 Di2 4-Port Junction

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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