Cycling · Groupset · Shimano
Shimano Dura-Ace Di2 R9270
Shimano's flagship 12-speed semi-wireless electronic disc-brake road groupset, aimed at competitive road cyclists and WorldTour-level racing.
Released 2021Quick facts · not yet fully researched
Quick specs
- Brakes
- Hydraulic disc, flat-mount (BR-R9270), ServoWave technology
- Speeds
- 2x12
- Lever Battery
- CR1632 coin cell, ~1.5–2 years; main seatpost battery ~1,000 km range
- Cassette Range
- 11-30T or 11-34T (HyperGlide+)
- Shifting System
- Semi-wireless Di2 (wireless levers, wired derailleurs via SD-300 wires to internal seatpost battery)
- Shift Speed vs. Predecessor
- 58% faster rear, 45% faster front (vs. wired R9100 Di2)
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