Reserve from the case
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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
Shipping Estimate
Description
Maximum front difference: 17T
Weight: 125g
Wires from the front and rear derailleurs
Each bearing can be removed and replaced using standard bearing tools
the 24-degree flared drops offer huge control and seamless transition between positions
SHIMANO Di2 SM-JC41 B Junction Box (Internal) Complete Road Bike Maximum front difference: 17TSM JC41 SHIMANO Junction B E TUBE Internal DI2 Wire Routing 4 Port For internal DI2 wire routing, SHIMANO's SM JC41 Junction B is the central connector for DI2 systems. Wires from the front and rear derailleurs, cockpit area, and battery all plug into the 4 port SM JC41 junction, which is housed inside the bike frame.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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