Cycling · Groupset · Shimano
Shimano Ultegra Di2 R8100
Shimano's second-tier 12-speed electronic-only road groupset with semi-wireless shifting and hydraulic disc brakes, aimed at serious road cyclists.
Released 2021Quick facts · not yet fully researched
Quick specs
- Speeds
- 2×12
- Shifting
- Electronic only (Di2), semi-wireless (disc brake variant)
- Battery Life
- ~1,000 km per charge (internal BT-DN300)
- Shifter Weight
- 391 g (pair, ST-R8170)
- Cassette Options
- 11-30T or 11-34T (Hyperglide+)
- Chainring Options
- 50/34T or 52/36T
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