i'm planning to get a new crankset, and I've been leaning toward going with something a bit longer. i have 170 mm on my road bike, and 170 on my 'cross bike right now. would i notice much improvement by going up to 172.5? problems? i'd like a bit more of a push going up sharp hills.
[my inseam, by the way, is 77.5 cm, and i have shortish calves...]