A few pictures of Andy Forey racing a modified Series 1 at the HPV races in Hillingdon.
The bike has a 406 (20 inch) rear wheel with Continental Grand Prix tyre and original 4 speed hub, with a shortened steerer tube to allow the bars to get lower, and a polystyrene aerodynamic moulding.
Mike Burrows has written that aerodynamics is the most important factor in terms of bike speed. It seems to have worked out well for Andy… he finished second in the “all bikes” race. Not bad for a forty year old shopping bike!