I agree with the comments about the lengthof the commute. I have a 17 mile communte one way, and I find it difficult to do more than 3 times a week. My muscles don't seem to have the time to recover from one day to the next.. And if I try, the mental part gets tough. Its just unpleasant, and if you don't enjoy it, my philosophy is don't do it at all.. And the miles would quickly destroy your bike. 80-90 miles per day would put 400 miles a week, 1600 miles per month.. In the bike shop or your garage at least once a month for clean and lube. Your hubs will be wore out in no time.... If you want to do this length of a commute, spend the right money on your wheelsets and the best nutrition possible, not to mention clothing. You'll be spending 3 to 4 hours a day in your saddle.... Have fun,.