I am 73 years old. work out every day at the ymca [swim, ride bicycle, lift weights and other exercises] for about 1 hour and forty five minutes. rid my trek 7200 every day to the y. 4 miles round trip. i would like to try some road trips. some in the 25 to 30 mile range. some of you that have road experience do you think this would be possible for a 73 year old and if so what would you suggest as training to get to that point and how long will it take?