The Shimano 105 ST-R7170 Di2 Shift/Brake lever features Di2 electronic shifting for precise, intuitive gear changes to even more riders. The 105 BR-R7170 caliper features the Shimano Flat Mount System and its low-profile design that is ideal for road bikes.
Reach adjustment and customized button functions allow you to dial in your ideal ergonomics
Creates a clean cockpit with wireless connection and enhances the aesthetic of your bike while keeping shifting lightning fast
Easily change button function with the E-TUBE app
Includes 2 x CR1632 batteries
10% wider pad clearance decreases the chance of disc brake rotor rub
Maintenance-friendly one way bleeding process
Includes L03A Resin pads with finned alloy backplate
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Christian Martínez
Just perfect ítems ! Very
Just perfect ítems ! Very honest!
Sierra Bicycle Supply
Nabeel Shahin
Perfect Helmet.
from the color to the style and the fit! Perfect!
S-Works Prevail 3
Mike
S Works Prevail 3 Fits Like a Glove
The S-Works Prevail 3 is one of the most comfortable bike helmets I’ve worn. The fit system adjusts perfectly, and once I ratchet the MIPS cradle to my head, the helmet almost disappears — it conforms so well that I barely notice I’m wearing it.
Ventilation is excellent. Riding in moderate weather around the mid-70s, my head stayed cool and comfortable without overheating. The airflow design really works.
Thankfully, I haven’t had to test the helmet in a crash, and I hope I never do. But the build quality and design give me a lot of confidence in the protection it offers. Highly recommended.
S-Works Prevail 3
JDLPHL
Amazing frameset - shipped fast - great pricing
Very impressed by the whole experience with Sierra Bicycle Supply! The frameset was just as shown - brand new and gorgeous. It shipped fast with tracking info. Great pricing on the frameset and I picked up other stuff for my build. Great overall experience - highly recommended!!
Tarmac SL8 Frameset
James Welch
Sick bike!
Amazing bike at super price. Free shipping. Highly recommend buying from these guys.
Went with the rival setup instead of force and I am super happy that I did. If you don’t need the extra button on the hoods, these are probably the best value item in the AXS drivetrain.
