I need a few sugestions on hill training. I want to compete in another triathlon next year in a very hilly part of Illinois, but I live in flat praire land. The only hills I have are overpasses and small climbs. WhereI will ride are hills you actually need to run lower gears on a car to get up. How can I prepare for these with nothing to match it locally. I cannot drive 3 to 4 hours away every weekend to got to this place. Am I good just doing a ton of miles in my big ring and higher gears?