The new SHIMANO 105 ST-R7170 shift/brake lever features Di2 electronic shifting for the first time, bringing precise, intuitive gear changes to even more riders. Reach adjustment and customized button functions allow you to dial in your ideal 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
- Easily change button function with the E-TUBE app
- Find your optimum lever position with simple reach adjust
Specification
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Use: Road
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Group: 105 Di2 R7100
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Model: ST-R7170-L
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Type: Dual-Control (STI)
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Handlebar mounting: left
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Gear front: 2-speed
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Optical gear display: No
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Lever reach adjust: Yes
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Handlebar diameter: 23.8mm/24.2mm
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Brake-type: Hydraulic Disc Brake
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Recommended brake caliper: BR-R7170
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Brake lever brake hose (Kit): SM-BH90-J-SSR, SM-BH90-JK-SSR
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Brake lever funnel bleeding: Yes
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Brake lever hose joint: Straight
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Compatible electric wire: EW-SD300
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E-tube Project: Yes
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E-tube port (pcs): 1
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E-tube connector (pcs): 0
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Di2 Wireless-Chip: Yes
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Battery: CR1632 x 2
Material
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Body: CFRP
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Lever: Aluminium, painted
Colour
Weight
Contents
- 1 x Shimano 105 Di2 ST-R7170 2-speed STI Dual Control left for Hydraulic Disc Brake
- 2 x CR1632 Battery
Brake Calliper BR-R7170, Brake Hose SM-BH90-J-SSR / SM-BH90-JK-SSR and Mineral oil SM-DB-Oil not included!
Technologies
SEIS SHIMANO ELECTRONIC INTELLIGENT SYSTEM
The SEIS innovative shift technology is still based on the SHIMANO INDEX SYSTEM (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case, the shifting action is provided for by electronics instead of mechanics. This electronic shifting system has been extensively tested over past two years by several professional riders in all conditions possible, such as rain, mud, low temperatures, cobble stone roads and combinations of all of these at the same time. Shifting is executed by simply pressing the button. No power is needed to shift, which gives important advantages since it is easier now to always keep a tight grip on the handlebar and to keep your concentration on riding instead on shifting. The shift system allows accurate and effortless shifting in difficult circumstances like when you have cold hands or when you are completely exhausted. Furthermore, the shifting performance will never be affected by contaminated or stretched cables since the shifting signal is transferred electronically. The operating buttons work similarly to mechanical Dual Control Levers so you don’t need to re-program your mind for a new system.
E-Tube
E-Tube platform offers optimum flexibility on your bike. E-TUBE transmits interactive signals and power supply to each parts by “Plug & play” connection. E-TUBE is no rust, no stretch, no freeze and it ensures advanced low maintenance. And SM-PCE1 connects between PC and components to update firmware. Digital device stay the latest version with updating firmware for improve function.
