Shimano 105 DI2 ST R7170 BR R7170 disc brakes kit resin
Worry-free Di2 shifting in a compact shifter size
The new SHIMANO 105 gear/brake levers feature Di2 electronic shifting for the first time, offering precise and intuitive gear changes to a wider range of cyclists. Stroke adjustment and customised button functions allow for personalised ergonomics.
Features
- Clean cockpit: Wireless connection enhances the aesthetic of your bike while keeping shifting lightning fast
- 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.
Technical Specifications
- Model N.: ST-R7170-R
- Series: SHIMANO 105 R7100 Di2 Series
- Shifter type: Dual Control Lever
- Brake hose (kit): SM-BH90-J-SSR, SM-BH90-JK-SSR
- Hose joint: Straight
- Recommended brake caliper: BR-R7170
- Oil SHIMANO Mineral
- Reach adjust
- Clamp band: 23.8-24.2 mm
- Funnel bleeding
- Free stroke adjust
- Di2 connectivity wireless, Di2 shifting
- Firmware update by E-TUBE PROJECT
- SD300 port
- Battery CR1632.
Hydraulic Disc Brake Caliper
With proven hydraulic braking technology, the new SHIMANO 105 calipers feature 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.
Technical specifications
- 10% wider pad clearance decreases the chance of disc brake rotor rub
- Maintenance-friendly bleeding process
- Model NO BR-R7170
- Series: SHIMANO 105 R7100 Di2 Series
- Brake type: Hydraulic disc brake
- Brake hose (kit): SM-BH90-J-SSR SM-BH90-JK-SSR
- Hose joint: Straight
- J-Kit spec (for OEM)
- Front cable length: 1000 mm
- Rear cable length: 1700 mm
- Ice Technologies pad compatible caliper
- K05S-RX Resin (w/o fin)
- L05A-RF Resin (w/ fin)
- Pad L04C-MF Metal (w/ fin)
- Recommended brake lever ST-R7170
- Recommended disc brake rotor SM-RT70, SM-RT64
- Oil SHIMANO mineral
- One way bleeding
- Flat mount
- Piston 2
- Caliper fixing screw: Tool size 4 mm
- Caliper fixing screw: Anti loosen method Screw fix pin
- Pad mount: Pad axle
- Real total weight: 778 g (levers + clamps).
Technologies
E-Tube
The E-Tube platform's “Plug & play” and D-Fly wireless connections make it easier than ever to check the system's status, and apply customized settings to DI2 and Shimano Steps components with a PC, tablet or smart phone.
Benefits & Features
- Wirelessly customize functions like Shimano Synchronized Shift over Bluetooth® while out on a ride.
- Automatically checks for firmware updates on each startup to ensure all components are running the latest version.
- PC, smartphone and tablet applications can help you quickly diagnose errors and simplify the repair process.
- Beautiful visualization of your real-time Shimano Steps riding data on your smartphone.
- Advanced all-weather design resists rusting, stretching, and freezing.
DCL (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.
The 105 Dual Control Lever has an optimized structure with features that include the lighter weight pivot section in the near side of the shifting unit and the integral shifting cable for lighter steering. Its many component parts are made so compact and precise to achieve unprecedented high-speed performance.
Reach Adjust
Brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.
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 Ice Technologies disc brake rotor and Ice Technologies pad to realize the cooling technology for consistent performance. The clad disc brake rotor blade, which has a 3 layer-sandwich structure of stainless steel, aluminum and stainless steel, provides better radiation performance achieving from 400˚C to 300˚C surface temperature. Also, the radiation fin has been adopted for the pad. Moreover, the clad disc brake rotor blade and the radiator fin provide long pad life, less noise, less fade and lightweight.