Shimano ST-R785 Di2 Shift/Brake
Best high performance upgrade for dedicated road cycling enthusiasts
This system merges the effortless precision of electronic shifting with the reliable, all-weather stopping power of hydraulic discs. It is a seamless upgrade for riders seeking a cleaner cockpit and more consistent performance across varied terrain.
$259.99
More Di2 options
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Shimano BT-DN110A-7 Di2 Internal Battery
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Shimano Di2 E-Tube Wire
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Shimano EW-JC200
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Shimano EW-JC130
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Shimano Di2 Battery Mount
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Shimano BCR1 E-Tube Battery Charger
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Shimano BT-DN320A Battery
$55.00
Shimano SW-RS910 Di2 Junction Box
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Shimano Di2 Battery BT-DN320
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Shimano E-Tube Y-Splitter
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Shimano EW90-A Di2 Cockpit Junction Box
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Shimano EW90-B Di2 Cockpit Junction Box
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Shimano SM-EW90-B Junction A
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Shimano EW-WU111 Wireless Unit
$75.00
Shimano SW-EW90-A
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Shimano SM-JC41 Di2 Junction Box
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Shimano EW-SS302
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Shimano Di2 E-Tube Wire Cover
$15.00
Shimano Di2 eTube EW-AD305 Conversion Adapter
$23.99
Shimano Di2 E-Tube Y-Split Connector
$54.99
Shimano Di2 E-Tube Battery Mount BMR2
$99.99
Shimano BMR1 and BRM2 Di2 External Battery Mount Base
$47.22
Shimano Power Cable
$14.00
Shimano BT-DN110-1 Di2 Battery
$159.99
Shimano EW-SS302 eBike Sensor Unit
$27.90
Shimano SD50 E-Tube Wire Cover
$15.00
Shimano BM-DN100-L Di2 Battery Mount
$130.98
Shimano Di2 EW-SD50 E-Tube Wire
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Who it's for
- Performance cyclists seeking reliable gear changes in all conditions
- Endurance riders prioritizing safety and confidence on technical terrain
- Long-distance cyclists who value ergonomic comfort and reduced strain
Who should skip it
- Home mechanics without professional-grade tools or hydraulic experience
- Touring cyclists traveling far from reliable power sources
- Budget-conscious riders looking for a simple and affordable upgrade
Performance breakdown
Shifting Precision
Di2 electronic actuation delivers flawless, instant gear changes every single time.
Braking Modulation
Hydraulic system offers exceptional control and predictable stopping power in all conditions.
Ergonomic Comfort
Refined lever shape significantly reduces hand fatigue during long, demanding rides.
Maintenance Ease
Mineral oil system simplifies bleeding compared to more corrosive DOT fluid alternatives.
Weather Resilience
Sealed electronic components and hydraulic internals perform consistently in harsh, wet environments.
Installation Complexity
Requires specific electronic wiring knowledge and hydraulic hose routing expertise.
Key Specs
Brake Type
Hydraulic Disc
Shifting System
Di2 Electronic
Compatibility
Drop-bar
Components
Front and Rear Levers/Calipers
Brake Fluid
Mineral Oil
Part Number
Y07T98080
Quantity per pack
1
Bike Type Compatibility
Road Bike
Component Application Area
Brake System
Compatible Brand
Shimano
Know before you buy
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