I am curious about this as well. I have tried counting the teeth but have a hard time. The spec page on the Giant website says my bike has the following:

cassette: SRAM PG-950 12-26T, 9 speed
cranks: TruVativ Elita, 30/42/52T

Does that mean:

My smallest crankset chainring has 30 teeth?
My largest cog has 26 teeth?

So it would be 30/26?

Would I have the minimum gearing to ride in Morsecode's ride?

As for the diameter of the wheel, is that what the number "700" refers to?

Hope you don't mind my jumping in with additional related questions MC...

barb