Reserve from the case
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
Reserve from the case
Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
Maximum front difference: 17T
Wires from the front and rear derailleurs
Integrated low-profile caliper design
than a mid-depth carbon wheel
The WHISKY No
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.
US$ 55.00
US$ 106.00
US$ 100.00
US$ 25.00
Pay in 4 interest-free payments of $10.00 Learn more