I use runkeeper on my cellphone to track a lot of my rides but i don't really understand what all the data really means comparitively. I just did a 35 mile ride that had 5100 feet of climbing in it. where does this rank on the scale of difficulty?
FWIW, there is probably a 8 mile stretch where at least 60% of that climbing occured! If i can segment just that part I will do so and see what the specifics are.