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Tredz£269.00Visit shop Shimano Black St-R8170 Bled Hydraulic Disc - Di2 E-Tube Sti Set - Flat Mount Calliper Size 1
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The Shimano Ultegra R8170DRF Di2 hydraulic disc brake lever is designed for competitive road cyclists and enthusiasts who demand high-precision shifting and reliable stopping power. This system delivers effortless, mouse-click gear changes and consistent modulation in varied weather conditions, though users should be prepared for the maintenance requirements inherent in a sophisticated electronic hydraulic system.
| Series | Ultegra |
|---|---|
| Model Part Number | R8170DRF |
| Brand | Shimano |
Yes, the lever features wireless connectivity for shifting signals, though it still requires a connection to the hydraulic brake system.
Yes, through the Shimano E-Tube app, you can reassign button functions to suit your personal preferences.
Only use genuine Shimano mineral oil for the hydraulic system.
No, the R8170 series is specifically engineered for hydraulic disc brake systems.
You can monitor the battery status via the connected head unit or the E-Tube Project app on your smartphone.
It is generally compatible with other 12-speed Shimano Di2 road components, but always check compatibility charts for specific mix-and-match setups.
Check the battery charge level and ensure the wireless pairing between the levers and derailleurs is active.
The hydraulic system likely contains air bubbles and requires a proper bleed procedure using Shimano mineral oil.
Ensure your smartphone or tablet has a stable connection and that the Di2 system is sufficiently charged before initiating updates.
Proper installation of the R8170DRF requires a clean workspace and appropriate hydraulic fluid handling tools. Ensure that the system is paired with a compatible Di2 battery and derailleur set via the E-Tube app. For maintenance, keep the brake calipers free of debris and ensure the rotor is aligned correctly to prevent pad rub. During the winter months, periodically check that the electronic contact points remain clean and that the firmware is up to date. Always use recommended mineral oil for hydraulic bleeds to maintain seal integrity.
