Di2 Junction-B Box SM-JC40 External

$29.99

Description

Shimano Di2 offers the most precise and reliable shifting imaginable, at the push of a button. Adjust the derailleurs once, and the intelligent, auto-trimming system returns derailleurs to the same position every time. The intuitive and user-friendly design can be set up at home and accommodates any frame; new or old.

The Shimano Di2 SM-JC4 junction box connects the electric wires from the rear derailleur, front derailleur, battery, and shift levers. There are two types, external (mounted under the bottom bracket) and internal (for Di2 compatible frames.)

Model Number
SM-JC40
Item Code
P65-SSF-EXT
Di2 Junction-B Box SM-JC40 External

Colorado Cyclist Gift Certificate Program

Colorado Cyclist Gift Certificates can be earned in our store or online periodically. Colorado Cyclist Gift Certificates are not legal tender. No cash back. Customer will receive a Colorado Cyclist Gift Certificate worth 10% of select items on any order over $100 to be used on a future purchase. Colorado Cyclist Gift Certificates are earned on the amount of customer purchases after all applicable discounts are applied and before tax is imposed. Eligible customer purchases include select sale-, regular- and clearance-priced items. Colorado Cyclist Gift Certificates may be redeemed with any other offer, but cannot be redeemed for cash. Colorado Cyclist Gift Certificates may not be redeemed (1) to reduce any third party charge account balance; (2) as price adjustments on prior purchases; or (3) to purchase Gift Cards. If merchandise purchased earning a Colorado Cyclist Gift Certificate is subsequently returned or price adjusted, the value of the Colorado Cyclist Gift Certificate previously earned and/or the amount of the merchandise refund will be reduced to reflect any unearned value. Return value of merchandise purchased with a Colorado Cyclist Gift Certificate may be subject to adjustment. Offer is not transferable.

*Offer does not apply to some specially priced items. Items not included will be noted. Please call (800) 688 8600 for details.

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