Originally Posted by
gregf83
You will if you're going uphill. Not a huge difference, but if you can shave 3-5 lbs of bike weight it can make a difference on a competitive ride.
Perhaps, but you'll also go faster on a heavier bike on the way down.
But seriously, in reading some of the threads on this forum, many forum members report that their ride times don't improve with lighter or more expensive bikes. Some even report that they are a bit slower on their lighter bikes, for whatever reason.