Shimano Ultegra R8050 Rear Derailleur 11S Di2 Short Cage Bl

Specifications for Shimano Ultegra R8050 rear derailleur
Only for use with electronic shifting
Number of gears: 11-Speed
Mount: Direct mount
Largest workable chainring: 28 Teeth
Smallest workable chainring: 11 Teeth
Maximum capacity*: 35 Teeth
Cage length*: Short cage
Bicycle type: Road Bike
Brand: Shimano
Weight: 240g
Color: Black
Material: Aluminum/steel
Product type: Rear derailleur
Series: Ultegra
Product type: RD-R8050
Product model number: IRDR8050SS

*Capacity =
Difference between largest and smallest front chainring:
For example (48 / 36 / 32) 48 - 32 = 16
Difference between largest and smallest rear chainring:
For example (32 / 30 / 28 / 26 / 24 / 22 / 20 / 18 / 14 / 11) 32 - 11 = 21
Capacity 16 + 21 = 37

*Cassettes: 11-43 (long cage)
Cassettes: 11-35 (mid-cage)
Cassettes: 11-28 (short cage).