Shimano EW90-B Di2 Cockpit Junction Box
Best reliable integration for advanced electronic shifting systems.
This essential control hub manages electronic shifting signals across the cockpit. It serves as the central nervous system for high-performance electronic drivetrains, ensuring reliable communication between shifters and derailleurs.
$181.32
at
Bicycle Addiction
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Who it's for
- Di2 users needing convenient access for maintenance and customization.
- Riders seeking unwavering performance from their electronic drivetrain.
- Cyclists who want to monitor their Di2 battery status easily.
- Cyclists prioritizing a tidy, aero-optimized handlebar setup.
Who should skip it
- Builders wanting cross-compatibility with non-Shimano electronic components.
- Budget-conscious cyclists looking for basic shifting functionality.
- DIY mechanics preferring straightforward, quick component installations.
- Riders frequently encountering harsh conditions or potential crashes.
Performance breakdown
Signal Reliability
Rock-solid connectivity ensures zero latency during critical gear shifts.
Cockpit Integration
Low-profile design keeps your handlebars looking clean and uncluttered.
Firmware Accessibility
Updates are straightforward when using the dedicated Shimano system checker.
Build Durability
Rugged housing protects sensitive electronics from road vibration and weather.
Setup Complexity
Requires careful cable routing and precise firmware matching for success.
System Compatibility
Seamlessly bridges the gap between shifters and derailleurs in Di2 setups.
Key Specs
Part Type
Junction Box
Application Area
Cockpit
Compatibility
Di2 electronic shifting systems
Firmware
Requires uniform firmware across all components
Know before you buy
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