I bought a Trek Pilot 2.1 about three months ago and have 500 miles on it, before that I rode a Bianchi Boardwalk. Trying to get the the 100 miles per week level by adding a 20 mile round trip work commute this week. Still straining to get up these East Tennessee hills and approaching my 51st birthday. Considering changing the crankset from the stock 52/42/30 to one from a mountain bike like the 48/38/28, as I think the 44/32/22 would be a bit much for a road bike. Discussed it with my LBS and he was not sure if I would have to change the cassette so he was going to run it through his computer. Has anyone here made a similar change and found it to be helpful? I have century rides set up for Aug., Sept. and Oct. The first two are in much flatter West Tennessee but the last one is here with my local club in the hills. Thinking I should just get as many miles in as possible for conditioning and make the decision in a couple of months. Opinions?