I'm thinking about a 46 wheelset, but I don't compete and I can only to hold 19 miles per hour as my cruising speed, specifically I'm thinking in reynolds assault for clincher, and the use would be just plain exercising, and they would be mounted in a titanium frame. Would they be worth the investment, would it be possible to measure my improvement in miles/hour in a flat terrain, no wind and tail wind? Currently I'm thinking that the answer would be not, but just in case, thanks.