Convert your DT Swiss wheel or hub into a 9mm thru-bolt. Genuine DT Swiss spare part. Convertible Hubs: 180 Centre Lock® fifteen front 240s straight-pull Centre Lock® fifteen front 240s Centre Lock® fifteen front Convertible Wheels: XRC 1250 SPLINE® front (27.5, 29) XR 1450 SPLINE® front (26, 29) XR 1501 SPLINE® front (26, 27.5, 29) XM 1501 SPLINE® front (26, 27.5, 29) EX 1501 SPLINE® front (26, 27.5) XM 1550 TRICON® front (26, 29) XRC 950T front (26, 29)