I typically ride between 90 and 100 rpms...sometimes a bit more or less and use whatever gear works for that pace. The gear changes depending on effort...an easy spin day is a different gear from a TT pace day, etc. I also generally use the entire cluster, except the 11 tooth cog when in the small/40 tooth ring...I use a 50/40 chain ring set up and an 11-23 9 speed Campy cassette in the back. I seldom look to see or care really what gear I'm in.