I've got a Cyclone II GT, it's a long cage derailleur and it will handle a 32t large cog. I was under the impression that the only difference between the standard Cyclone II and the Cyclone II GT is that the GT has a longer cage, therefore giving it more chain wrap capacity which is a different issue than max. cog capacity. The only place it says "GT" on my derailleur is on the cage itself, where it's stamped "GT." FWIW, I believe the chain wrap capacity of the GT model is 34t-