Heck, if it's going to speed him up enough to make a 50m difference over a 200km road race, it's worth the price to an actual racer. (And there will probably considerable time spent tweaking even the best of things to perfection before each race.) But they are so very, very few in number, even if it's sometimes hard to tell when you pass that one local cafe that is populated exclusively by spandex-wearing, logo-encrusted latte drinkers who gather to talk about their bikes.