As a beginner, I know very little about gearing on bikes.
I read the post about crank sets lasting 1500 miles and was surprise as my set has missing tooth tips on the middle gear after 500 k. I am riding a diamondback sorrento with 24t, 34t,41t. The 41t I'm not quite sure of it could be42t. My question is can I get gears that retaian a 24t but raise the other two so that my speed would be higher than about 28 k on flat roads?

Charlie