Vintage Thing No.137 - Miss Bacfire
Continuing the theme of Shelsley specials after the trip to Wisombe, here's Miss Bacfire. Or maybe that should Miss BACfire. That 2.4 litre vee twin originally lived in a 1920's motorcycle used for bicycle pacing. I'd never heard of this sport but it's basically going as fast as you can on a push bike whilst slipstreaming behind a motorcycle or car. It used to be incredibly popular because of the speeds involved and velodromes sprang up all over France to sate the demand. It was even worth Louis Bac building motorcycles especially designed for this very purpose. These had big engines with a direct belt drive off the crankshaft and would build up speed slowly and inexorably dragging the hapless cyclist along behind them in their wake. You can see the sort of device on Silodrome . The A Meier BAC, to give the machine its full title, was built around 1928 and featured rollers on the back to avoid any mishaps if the pursuing push bike put its front tyre to clos...