Installing a new chain - length and direction
Sizing and installing a new chain for your Di2 bike isn't hard, you just need to follow the right steps. This page quickly shows the chain sizing methods and explains chain directionality.
2x12 Crankset
Ultegra FC-R8100
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:
- 52 x 36T
- 50 x 34T
- 46 x 36T (for CX)
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Specifications
- Model code
- FC-R8100
- Series
- Ultegra R8100
- Weight
- 700g (50-34T), 711g (52-36T
- Chain line
- 44.5mm
Images
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