I offer kits. Some with subframes, some without for mounting Velorex sidecars. Not for 'El Grande' bikes like Wings, Electraglides and 1700 Metrics and such. I do have kits for all years of Harley Sportsters (including the newer 'rubber mount' engine), many Honda, Yamaha and Kawasaki cruisers and the new Hinkley Triumph Bonneville both 'standard' and cruiser type. Many people bad mouth Velorex but i have sold them for many years and what makes for success is matching them with the right bike and proper rigging. Cobbled home rigging by folks who aren't as mechanical as they think they are or mounting to too large a bikes are frequent causes of failure. Not the sidecars fault.