Nederland
België
Deutschland
Finland
Ireland
Luxembourg
Portugal
Poland
Österreich
France
España
Italia
Sverige
Danmark
Shimano Ultegra ST-R8170 + BR-R8170 Disc brake set
Shimano Ultegra ST-R8170 + BR-R8170 Disc brake set
RRP 507.25
From 344.60
- Free tracked delivery to Ireland
- Trustpilot rating 4.6/5
Does this page help you make your choice?
Ask a question about this product
Pros & Cons
Pros & Cons
- Great shifting performance, high shift speed and smooth shifting while out of the saddle.
- Semi-wireless: there is still a cable connection between the battery, front and rear derailleur. Easier mounting and little chance of cable breakage.
- You can bleed the brakes without unscrewing the caliper from the frame. Very handy!
- With Di2 electronic shifting, you must adjust the derailleurs once and they will adjust themselves automatically in the future.
- 10% more space between the pistons, reducing the risk of rotor rubbing.
- 80 grams heavier compared to the Dura Ace R9270 disc brake set.
Specifications
Specifications
| Brand | Shimano | |
| Diameter Disc Brake Rotor | 140 mm / 160 mm | |
| Brake Mount | Flat Mount | |
| What groupset do you have? | Shimano Ultegra | |
| Number of gears | 12 speed | |
| Type | Set | |
| Type of Brake | Hydraulic | |
| Gear Shift Type | Electronic | |
| Suitable for | Shimano Ultegra Di2 R8100 / Shimano Dura Ace Di2 R9200 |
The Shimano Ultegra ST-R8170 + BR-R8120 disc brake set consists of a Shimano R8170 2x12 speed shifter with Shimano Ultegra R8120 hydraulic brake caliper with bled hydraulic hose. This is also available as either a front or rear set.
Shifters
The ergonomics of the Shimano Ultegra R8100 shifters have been optimised and are similar to the Dura Ace R9200 Disc Di2 groupset. The ergonomics of the Shimano Ultegra R8100 shifters are comfortable in the hand. You have better control and can comfortably adopt multiple positions. The shifters each feature a button-cell battery that maintain the connection to the front and rear derailleurs. These have a battery life of around 1.5 years of use.
Disc brakes
The disc brakes have also been taken in hand. The Ultegra caliper consists of 2 parts and is CNC milled. Just like the Dura Ace calipers, there is 10% more space between the pads and the rotors. This has ensured that the brakes have little to no touching when you are not braking. Nothing is more annoying than rotors rubbing on during a climb or in a sprint. Braking power and metering are also noticeably improved.
Shifters
The ergonomics of the Shimano Ultegra R8100 shifters have been optimised and are similar to the Dura Ace R9200 Disc Di2 groupset. The ergonomics of the Shimano Ultegra R8100 shifters are comfortable in the hand. You have better control and can comfortably adopt multiple positions. The shifters each feature a button-cell battery that maintain the connection to the front and rear derailleurs. These have a battery life of around 1.5 years of use.
Disc brakes
The disc brakes have also been taken in hand. The Ultegra caliper consists of 2 parts and is CNC milled. Just like the Dura Ace calipers, there is 10% more space between the pads and the rotors. This has ensured that the brakes have little to no touching when you are not braking. Nothing is more annoying than rotors rubbing on during a climb or in a sprint. Braking power and metering are also noticeably improved.
Servowave
The brakes use Shimano's Servo Wave Action. This technology means that the speed at which the pistons go in becomes slower as the pistons get closer to the disc. This preserves the engagement torque that Shimano brakes are known for, but greatly improves brake metering.
Shimano DI2 app
All adjustment options such as assigning shift buttons, automatic shifting or adjusting shifting speed can be done via the Shimano DI2 app. The function of the shift buttons are individually configurable. The synchronised shift or semi-synchronised shift in which the front derailleur automatically shifts with it for the ideal chainline is also an option.
The brakes use Shimano's Servo Wave Action. This technology means that the speed at which the pistons go in becomes slower as the pistons get closer to the disc. This preserves the engagement torque that Shimano brakes are known for, but greatly improves brake metering.
Shimano DI2 app
All adjustment options such as assigning shift buttons, automatic shifting or adjusting shifting speed can be done via the Shimano DI2 app. The function of the shift buttons are individually configurable. The synchronised shift or semi-synchronised shift in which the front derailleur automatically shifts with it for the ideal chainline is also an option.
1x Shimano Ultegra ST-R8170 + BR-R8120 including brake pads
1x Shimano Hydraulic disc brake cable filled with mineral oil
2x Disc brake bolts for caliper mounting
1x Brake pad spreader
1x Piston spreader
1x Insert pin
1x Shimano Hydraulic disc brake cable filled with mineral oil
2x Disc brake bolts for caliper mounting
1x Brake pad spreader
1x Piston spreader
1x Insert pin
Frequently bought together
Frequently bought together
Recommended by the product specialist
Recommended by the product specialist
Related products
Related products
|
|
|
|
|
| Shimano Ultegra ST-R8170 + BR-R8170 | SRAM Force AXS E1 | SRAM RED AXS E1 | SRAM Rival AXS E1 | |
| 7 reviews | 1 review | 3 reviews | ||
| Diameter Disc Brake Rotor | 140 mm / 160 mm | Without Disc | ||
| Brake Mount | Flat Mount | Flat Mount | Flat Mount | |
| What groupset do you have? | Shimano Ultegra | SRAM Force | SRAM RED AXS | SRAM Rival |
| Number of gears | 12 speed | 12 speed / 13 speed | 12 speed | 12 speed / 13 speed |
| Type | Set | Set / Left / Right | Set / Left / Right | Set / Left / Right |
| Type of Brake | Hydraulic | Hydraulic | Hydraulic | Hydraulic |
| From 344.60 | From 284.58 | From 508.21 | From 203.26 | |
| This product | View product | View product | View product |
All specifications
General
Brand
Shimano
Diameter Disc Brake Rotor
140 mm / 160 mm
Brake Mount
Flat Mount
What groupset do you have?
Shimano Ultegra
Number of gears
12 speed
Type
Set
Type of Brake
Hydraulic
Gear Shift Type
Electronic
Suitable for
Shimano Ultegra Di2 R8100 / Shimano Dura Ace Di2 R9200
Lever Material
Carbon Composite
Shifter Hood Material
Silicon (Vari-Cushion)
Adjustable lever
Yes
Compatible with
Disc brakes
Colour
Black
Sizes
Length
1000 mm / 1700 mm