Shimano Dura-Ace R9200 12-Speed Upgrade Kit
2,296.34
Shimano Dura-Ace R9200 12-Speed Upgrade Kit
Shimano Ultegra R8170 Di2 Disc
From 1,350.97
Shimano Ultegra R8170 Di2 Disc

Shimano Dura-Ace R9200 12-Speed Upgrade Kit vs. Shimano Ultegra R8170 Di2 Disc

Shimano Dura-Ace R9200 12-Speed Upgrade Kit
Shimano Ultegra R8170 Di2 Disc
Shimano Dura-Ace R9200 12-Speed Upgrade Kit

2,296.34

View product
Shimano Ultegra R8170 Di2 Disc

From 1,350.97

View product

This is what our customers think

Reviews
-
(14)
Pros
-
Effortless gear shifting
Easy indexing
High quality - Everything fits and works
Cons
-
Challenging to fit as a home mechanic.
Need plenty of tools and time to fit

According to the product specialist

Pros
Unmatched shifting performance in terms of shifting speed and shifting under load.
Powerful braking with good modulation; the brakes do not engage too abruptly.
This group is semi-wireless, so there are no cables between the shifters and the front derailleur; easy to install and reduced chance of cables breaking.
Easy brake bleeding: no need to unscrew the brake caliper from the frame.
The derailleurs need only be adjusted once and that's it for the rest of your road bike's life.
Great shifting performance: quick and smooth shifting even when you're standing on the pedals.
Amazing modulated braking power without abrupt clamping of the brakes.
Semi-wireless: there's only a cable connection between the battery, front and rear derailleur. This makes for easier mounting and a low chance of cable breakages.
You can bleed the brakes without unscrewing the caliper from the frame. Pretty convenient!
The derailleurs only need to be finetuned once thanks to Di2 electronic shifting. After that, you'll be ready for the rest of your road bike's life.
Cons
Dura-Ace is not for everyone; compared to Ultegra, the price is much higher.
Ultegra R8100 Di2 Disc is not the most lightweight groupset, and is heavier than Shimano Dura Ace R9200 Di2 Disc.

Specifications

Brake Type
Disc Flat Mount
Disc Flat Mount
Bike Type
Road bike
Road bike
Number of gears
12 speed
12 speed
Shifting Type
Electronic
Electronic
Gear Shift Type
Electronic
Crankset (Axle) Type
Hollowtech II
Type
Double
Cassette Ratio
11 / 28
11 / 30
11 / 34
11 / 30
Diameter
160 mm
Cage Length
Medium Cage
Medium Cage
Crank Ratio
50 / 34
52 / 36
Crank Length
165 mm
170 mm
172.5 mm
175 mm
Bottom Bracket
No, not included
Front Derailleur
Braze-on
Braze-on
Cables
Electronic derailleur cables
Hydraulic brake lines
Charger cable
Electronic derailleur cables
Hydraulic brake lines
Charger cable
Junction Type
Internal
Colour
Black
Grey
Type
2x12
Diameter Disc Brake Rotor
160 mm front / 160 mm rear
Crankset Type
Double
Brake Disc Mounting
Centerlock
What groupset do you have?
Shimano Dura-Ace
Shimano Ultegra
Shimano Ultegra
Packaging
Factory Packaging
OEM
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