I'm also a fan of Suntour Cyclones. I was riding a Cyclone GT for a while until I realized one of the springs in the derailleur body was broken. (lazy 6-7 and 7-6 shifts on a seven speed freewheel) I didn't see any way of getting the pins out to replace the spring so I bought another Cyclone GT. Felt like setting a rattrap by comparison! Guess I missed the light touch. I then put "broken" derailleur back on, shifting on a five speed with ratcheting barcons and it feels great.
Pete Geurds
Douglassville, PA