News has popped up that Fabian Cancellara probably used some killer bearings on his bikes while riding for Saxo Bank last year. Remember bike doping? I wouldn't call this the same, but it could definitely give you an advantage over other types of bearings. Sealed may last longer but they don't spin as free as loose ball. Ceramic bearings may come in as a close second to loose ball but check out the videos below and link up to cecchiniteam to check out more, if you can read Italian. According to the website, you can save as much as 2.5 seconds per kilometer. That may seem like a small amount, but its not small at all... its a ton of time. If you figure Cancellara broke away at Paris Roubaix last year with say 20k to go, thats 50 seconds lead just by staying at the same pace as the front group. You can also think of it differently, he'll save energy when he's in the pack due to the fact that his bike spins freer with less resistance. hmmmm... I want some of those for my road bike!