Drillium - Drilling bike frames and parts

Fabian Cancellara's (Radioshack-Nissan) le-tour Shimano Dura-Ace rear derailleur .. equipped with aftermarket pulleys and Nokon cables at a quick galance, so I guess he feels there's a need to 'tune' standard equipment?

When there's marginal gains to be made and when the difference between winning and losing is being measured in hundredths of a second, these things can make a difference, but on the commute or Sunday morning club run, they're not exactly critical.