Originally Posted by
one4smoke
So at 75 to 95 rpm's, what would be the proper gear range on a 3X9 based on the info I've given? Other than the highest gear (which is giving me the problem), what gear should I not exceed on generally level ground to maintain around 14 mph and not put too much pressure on my knees?
I'd recommend cruising with the large cog on the front and the middle one in the rear. You may need to go one size larger on the back. A lot depends on the number of teeth on those gears.
One thing working against you is your height. You probably have a lot of wind resistance. I'm your weight, but 3" shorter so I'm probably a little more aerodynamic even with my 'beer belly'.
If you decide to invest in another bike computer, many have cadence counters so you have a better idea of how you are spinning the pedals. I'm somewhat of a masher myself as I'm usually between 75-80 rpm.