This hydraulic disc set is a perfect option for riders who want to upgrade their existing setup to wireless or those who want to make the switch from mechanical to electronic shifting for the first time. Offering high-level performance at a more affordable price, this bundle includes 1x ST-R7170 Dual Control Lever (DCL) and 1x BR-R7170 Flat Mount Brake Caliper, so you can experience the magic that Shimano 105 Di2 brings to the cycling industry.
ST-R7170 105 Di2 Double Hydraulic Lever
This Shimano 105 shift/brake lever features Di2 electronic shifting for the first time, bringing precise, intuitive gear changes to even more riders. Not only does it offer worry-free Di2 shifting in a compact shifter size, but it also features technologies such as Reach Adjust and customised button functions that allow you to dial in your ideal ergonomics.
BR-R7170 105 Flat Mount Brake Caliper
With proven hydraulic braking technology, the Shimano 105 caliper features the Shimano Flat Mount System and its low-profile design that is ideal for road bikes. More compact and lighter than ever, the R7170 brakes offer wide pad clearance for easy wheel removal and quiet performance as well as one-way bleeding for easy, clean maintenance.
Digital Integrated Intelligence
The revolutionary DI2 shifting system solves the challenges drivetrains present to the power-delivery equation in cycling. DI2 gives you instant, accurate, lightning-fast shifts the first and every time, at the push of a button. Even in the most extreme conditions, shifting is precise and controlled. You can change gear even under heavy load while climbing or accelerating. With DI2, you are in complete control.
Shimano 105 Di2 brings electronic wireless shifting to a new set of riders. For those who have only experienced mechanical shifting and ergonomics, Shimano 105 Di2 represents a transformation of the road cycling experience.
Technologies:
Reach Adjust: This model’s brake lever is equipped with a Reach Adjust mechanism. The distance from the handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.
E-Tube Project: Shimano’s genuine application E-Tube Project Cyclist allows you to customise your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get the more detailed bike maintenance by connecting to your bike by wire with E-Tube Project Professional application.
Dual Control Lever: DCL stands for Dual Control Lever. It has brake and shifting functions in the system and enables easy operation. Ergonomic innovation is probably more critical to the higher standard performance than the added gearing. The shift internals borrow the robustness from Shimano’s MTB technology and are so smooth and effortless that one finger shifts front and rear are possible. Indeed, shifting is the ultimate act of Shimano Total Integration, and simply has to be experienced to be understood.
Ice Technologies: The fade, which can occur to disc brake rotor and pad when braking on a long downhill ride, for instance, has a negative impact on the braking performance. Shimano has adopted the Ice Technologies piston to realise the cooling technology for consistent performance. Oversized pistons transfer hydraulic power directly to the brake pad, and ceramic material is used to avoid heat transfer for constant stable braking, providing efficient stopping power transfer without loss. This model’s Ice Technologies piston achieves optimised lightweight, high rigidity and heat dissipation.
One Way Bleeding: One Way Bleeding was developed for quick and easy prevention of air in the hydraulic system. Shimano has streamlined the oil route throughout the system to prevent air bubbles from being captured in the system. One way oil routing plus a funnel tool with mineral oil provides an easy and clean bleeding system.
Manufacturer’s Part Numbers:
R7170DRF Black Front Right
R7170DLR Black Rear Left
