Verified purchaser
As always a Bery competitive price and great delivery
Product Details
Shimano ST-R7170 105 Double Hydraulic Di2 STI Right Lever
Shimano’s legendary electronic shifting is now available in their third-tier groupset, with the ST-R7170 105 12-Speed Hydraulic Di2 STI Right Lever operating the all-important rear derailleur.
The levers themselves are large, easy to locate and work in exactly the same fashion as the mechanical version but with a lot less effort and greater precision. It is possible to set the drivetrain to synchro shift whereby a single shift can actuate both derailleurs in order to access the very next ratio for better cadence, or semi-synchronised shifting that will correct the rear sprocket in order to maintain cadence when the chainrings are changed.
The lever also operates the hydraulic braking and includes automatic pad adjustment that compensates for pad wear as well as plenty of reach adjustment to accommodate smaller and larger hands. Connection to the wiring loom and derailleurs is wireless, meaning that the shifter is easy to fit, with no wires or cable to thread through the handlebar and stem.
Features
- Great value 105 Wireless hydraulic disc brake Di2 STIs give control, modulation and power with minimal effort in all riding conditions
- Right lever operates the rearDi2 derailleur
- Wireless connectivity to the front and rear derailleurs for effortless trouble-free gear shifts
- With Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear
- Full and semi synchronised shifting programmable
- Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to riding preferences
- Semi synchronised shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratio
- Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold
- Drop bar STI with shift buttons located in a near identical place to the positions to a mechanical Shimano STI
- Hydraulic brake lever provides excellent stopping power
- Hydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wear
- Finely tuneable reach adjusters for the levers enable custom fitment for all hands
- Levers use CR1632 batteries which last for approximately 1.5-2 years
Specifications
- Brake Compatibility
- Hydraulic Disc
- Discipline Compatibility
- Road
- Brake Lever [Maker]
- Shimano
- Brake Lever [Model]
- 105
- Brake Type
- Disc
- Family
- Shimano 105
- Shifter Integration
- Yes
- Adjustability
- Reach Adjust
- Product code
- 1643845 / 54295407788378
Reviews
5
Value of Product
Quality of Product
Verified purchaser
It shifts up and down your rear derailleur in a Di2 fashion, I cant tell you what to buy but I can tell you that this shifts like nothing that you've had to shift with before, I had mechanical for years & years and yes its a leap of faith but oh what a leap it is, btw its not the dark side.
Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
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About Shimano
Shifting the way the world rides.
From a single Osaka workshop in 1921, Shimano has grown into the world's most influential component maker. The brand's relentless engineering — Dura-Ace, Ultegra, GRX, XTR — has shaped the way the world shifts, brakes and rides, on the road and off it.
Shimano's flagship groupset, Dura-Ace, has been the benchmark for top-level road components for more than five decades. Every refinement that lands on Dura-Ace eventually shapes the entire Shimano range, all the way down to entry-level drivetrains.