Shimano Ultegra ST-R8170 + BR-R8120 Disc brake set
Shimano Ultegra ST-R8170 + BR-R8120 Disc brake set
RRP 847.70
575.00
272.70 discount
Due to the Brexit, it is currently only possible to place orders up to £135
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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 |
12 speed | |
Type
|
Set |
Hydraulic | |
Electronic | |
Suitable for
|
Shimano Dura Ace Di2 R9200 / Shimano Ultegra Di2 R8100 |
Description
Description
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.
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 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
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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.
Technology
ServowaveThe 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.
Delivery includes
1x Shimano Ultegra ST-R8170 + BR-R8120 including brake pads1x 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
Related products
Related products
Shimano Ultegra ST-R8170 + BR-R8120 | SRAM Force AXS D2 | Shimano Dura Ace R9270 Disc Di2 | Shimano 105 Di2 ST-R7170 DB | |
0 reviews | 0 reviews | 0 reviews | 0 reviews | |
Diameter Disc Brake Rotor | 140 mm / 160 mm | |||
Brake Mount | Flat Mount | Flat Mount | Flat Mount | Flat Mount |
What groupset do you have? | Shimano Ultegra | SRAM Force | Shimano Dura-Ace | Shimano 105 |
Number of gears | 12 speed | 12 speed | 12 speed | 12 speed |
Type | Set | Left / Right / Set | ||
Type of Brake | Hydraulic | Hydraulic | Hydraulic | Hydraulic |
From 291.40 | From 257.00 | From 454.70 | From 214.00 | |
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
Type
Set
Suitable for
Shimano Dura Ace Di2 R9200 / Shimano Ultegra Di2 R8100
Shifter Hood Material
Silicon (Vari-Cushion)
Colour
Black
Sizes
Length
1000 mm / 1700 mm