Shimano SM-JC40 Di2 External Frame Junction Box 4-Port
Shimano SM-JC40 Di2 External Frame Junction Box 4-Port
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Regular price
$37.88
Regular price
$48.26
Sale price
$37.88
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Shimano SM-JC40 Di2 External Frame Junction Box 4-Port. Shimano Di2 Frame Junction BoxFrame Junction Box connects via SD50 E-tube wires to four different points: front derailleur rear derailleur cockpit junction box and battery mount
All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/
Free Shipping
Free Shipping
- Spend $50 for free shipping on most items
- Delivery in 1-4 days contiguous United States
Free Returns*
Free Returns*
- We ask returns be initiated within 30-days
- Details can be found at our *Return & Exchange Portal
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Local Service
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- Southern California rentals, snow service, bike service
23851 Via Fabricante Ste. 201
Mission Viejo, CA 92691
949-234-6606