Sturmey Archer CS-RK3
3-speed hub gear with a transmission ratio of 177%
6061 aluminum hub shell
Technical details:
Hole numbers: 32 / 36L
for 8-, 9-, 10-speed MTB Cassette max. 11-34 teeth
for disc brake
Anodized alloy or black finish
Weight - 1155 g
ratio
Total volume - 177%
Gear 1 - 75% (Gear 2 - 25%)
Gear 2 - 100% (direct drive)
Gear 3 - 133% (Gear 2 + 33%)
This hub gear can only be operated with 3-speed Schimano or Shimano compatible switches (ratio 1: 2) with indexing. The Sturmey Archer's own twist grip and other switches do not work here and can destroy the hub!!!