e’re up to version four of Shimano’s S-Phyre shoes, but ever since the initial change at the top of Shimano’s road shoe range from R321 to S-Phyre RC9 in 2016, it has been a case of evolution as opposed to revolution. In this instance, there has even been a case of devolution, with the RC903’s shape said to be returning to the wider fit offered by the RC901s, as a change in the RC902s made them much narrower and more tapered at the toe box. This was not well received by fans of Shimano shoes, which are generally known to
