Here is a clamp mount to install a tactical light in your bike handlebars, styled to look like the Sea Bass Cycles symbol from the top. It should fit most commuter and mountain bike handlebars, and takes virtually any flashlight with a 25mm (1 inch) diameter handle. It enables 30 levels of side to side training adjustment.
Seabass Cycles is a bicycle shop offering servicing and reconditioned bikes, specialising in custom assembles and bike restoration, found in the center of Camberwell, South-East London. Amazing!