Waiting for the ideal moment then launching your attack with its lightweight spline174 ratchet system hubs and stiff overall build the rc 55 spline174 allows the rider to go all out when it really counts spline174 technologywith their intricately machined hub shells cleverly positioned spokes and proven freewheel technology the dt swiss spline174 wheels are engineered with modern riding needs in mind it is products like the spline174 wheels that allow riders to go faster an