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- Longer lasting. Uses two CR1632 batteries (battery life: 3.5 to 4 years)
- Compact, ergonomic performance cascaded from DURA-ACE
- Raised hood peak improves ergonomics, while a longer hood body increases hand support
- Make DURA-ACE yours with custom button function and adjustable ergonomics
- Easily change button function with the E-TUBE app
- Find your optimum lever position with simple reach adjust
- 10% wider pad clearance decreases the chance of disc brake rotor rub
- Maintenance-friendly bleeding process
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Review Shimano 105 Di2 ST-R7170/BR-R7170 Brake Lever/Caliper
