The Shimano S-PHYRE RC903 is the improved version of the well-known RC902, making it the ultimate competition shoe characterised by a superior fit and optimal power transfer. Innovation is at the heart of this shoe, which is why this version has been optimised even further for the highest possible performance! Here, three design areas are central to this high-performance product: function-specific zones, power transfer optimisation and superior fit. There is a reason why many riders in the pro peloton choose the Shimano RC903!