Cyclone GT II, which I think was the only model of Cyclone that had the II after it is actually an earlier model to the LePree being built around 1982. Not sure what the difference is between the two though. I have some weight information on the Cyclone but not the LePree. The Cyclone GT rear derailleur weighed about 188 grms and the front was 98grms. I had always thought that the Cyclone group was the lightest offering Suntour had besides Superbe, since supposely Cyclone was one step down from Superbe. But I could be wrong as far as Cyclone VS LePree, of the two I don't know which is lighter. Either one though were superb derailleurs.