Shimano Dura Ace Di2 Junction End Cap and Cushion
Best clean-cockpit solution for riders upgrading their electronic shifting setup.
This integrated junction box cleans up your cockpit by hiding wiring inside the frame or handlebar. It acts as the central nervous system for electronic shifting, providing a convenient charging port while streamlining your bike's profile.
$59.95
at
eBay
Who it's for
- Riders protecting sensitive electronics from sweat and road debris
- Mechanics demanding guaranteed compatibility with Dura-Ace components
- Cyclists prioritizing a clean, minimalist cockpit aesthetic
Who should skip it
- Budget-conscious riders seeking value for simple plastic parts
- Cyclists prone to misplacing small, easily lost components
- Owners of older or non-compatible Di2 electronic systems
Performance breakdown
Cockpit Integration
Eliminates bulky external boxes for a sleek, pro-level aesthetic.
Charging Accessibility
External port placement makes system maintenance effortless and quick.
Installation Complexity
Requires precise internal cable routing and specific handlebar compatibility.
Aerodynamic Efficiency
Hidden profile reduces drag compared to traditional junction box setups.
System Reliability
Shimano engineering ensures rock-solid connectivity for electronic shifting components.
Cable Management
Centralizes wiring neatly within the frame or handlebar end.
Key Specs
Model
EW-RS910
Compatibility
SD50 E-tube wires
Function
2-Port Junction Box with Charging
Component Application Area
Handlebar, Frame
Mounting Type
Internal
Bike Type Compatibility
Road Bike, Gravel Bike
Part Type
Junction Box
Quantity Per Pack
1.0
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