Sturmey Archer Derailleur With Hook 7S

Specifications for Sunrace RDM2Trear derailleur
Only for use with mechanical shifting (cable)
Number of gears: 6/7-Speed
Mount: With hook
Largest workable chainring: 28 Teeth
Smallest workable chainring: 13 Teeth
Maximum capacity*: 27 Teeth
Cage length*: Short cage
Bicycle type: MTB
Brand: Sunrace
Weight: 290g
Color: Black
Material: Steel
Product type: Rear derailleur
Series: RDM2T

*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).