We are often asked by athletes directly or via Facebook questions on whether it's worth investing in bike options to make the bike leg faster, nearly always asking about bike fit, and if there's a budget, what to buy first. Here is our answer, based on 15 years of racing and coaching multisport and single sport bikers, wind tunnel testing and scientific papers condensed here into an easy guide into watts saved over what distance Sometimes the smallest detail matters; 3 years