I currently own a Hybrid style bike(steel frame) with 24''x 1.95'' tires. My crankset is a triple (48/40/30t) with a 5 speed rear cassette(28-14t). I intend to purchase a Mercier Galaxy AL(aluminum frame & carbon fork) that features 700x23c tires, a triple crankset(52/42/30t) and an 8 speed cassette(28-11t). I understand that the greater gear ratio and larger tires may take a while to adjust to and I was wondering if there was anything i could do to train for this difference before i get the bike.