Dt r32 spline db the r32 spline db has a stiff semi aero rim combined with extremely stable new aero spokes and dt swiss39 reliable hub technology add these features up and you get a wheel with perfect disc brake control allowing faster descents and a cross code versatility for any power riders dt spline technology with their intricately machined hub shells cleverly positioned spokes and proven freewheel technology dt swiss spline wheels are engineered with modern riding needs in mind it