The frame is an 1952 Hydra with a vintage Springer fork. Meanwhile the engine is an Evolution 2 cosmeticly improved, looking like a Panhead. Front brake is a smart cover of a disk brake looking like a vintage drum brake. The back tyre has been replaced by an Avon Drag slick since these pictures were done, so was the handle bar which is now a flat bar. David wants his machine to be in constant evolution.