Building a 12-speed Di2 bike involves a couple of steps and decisions to make. Are you building a rim brake bike or a disc brake bike? Will you connect the shifters wired, or run them wireless? What cables and what length do you need? I'll guide you along the process.
The 12 speed Ultegra Crankset is available in a couple of different crank lengths, from 160mm to 177.5mm.
There is a regular version available which weighs 711 g, but also a Power Meter version (769 g).
There are three different chainring options:
- 54 x 40T
- 52 x 36T
- 50 x 34T
- Model code
- Ultegra (R8100)
- 700g (50-34T), 711g (52-36T
- Chain line
Related componentsView all components