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Cycling · Groupset · Shimano

Shimano Ultegra Di2 12-speed

A 12-speed electronic-only road groupset — Shimano's second-tier offering — featuring semi-wireless Di2 shifting, hydraulic disc brakes, and Hyperglide+ drivetrain technology, aimed at serious road c…

Released 2021Quick facts · not yet fully researched
Shimano Ultegra Di2 12-speed

Quick specs

Brakes
Hydraulic disc (flat mount)
Speeds
12
Shifting
Semi-wireless Di2 (wireless shifters, wired derailleurs to internal battery)
Cassette Range
11-30T or 11-34T
Drivetrain Tech
Hyperglide+ (borrowed from Shimano MTB)
Chainring Options
50/34T or 52/36T (also 46/36T)

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Shimano Ultegra Di2 12-speed · Quiver