The ultimate portable tune-up stand slips easily under the bottom bracket while the hook holds the down tube securely for display, storage and maintenance.Designed for road bikes with tires up to 700 x 38C. ,Bottom bracket support / Hook holds down tube,Folding design,Aluminum / Engineering grade plastic construction,Max weight 11kg,18.4x8.7x5.4cm (Folded),47.2x23.8cm (Open),450g.