WILIER Filante SL - F20 BlueEvery little worthwhile change In an evolving species, only the most calibrated change will result in progress. What really counts is neither strength nor intelligence. What makes the difference is the ability to adapt to change. The Filante SL inherits its forms, its lines and its racing spirit from the Filante SLR, Wilier's high end aero racing bike used by professionals in the most important World Tour competitions. What makes the change beneficial