Boost 141 Q/R Axle Adaptor for Direct Drive Trainers.Features:141mm Q/R adaptor to allow the use of Elite Direct Drive Trainers with Q/R Boost rear ends.Replaces non-driveside axle cup.Designed specifically for the Direto-XR and Suito, will not work with Turbomuin, Turno, Drivo or original Direto.
