Appears BSA , with terrific foresight knew that by the time we reach 67 physical acticity will be well down the list of things you'd call fun, enter the BSA a10 , lose a rear chain spring link 3/4's of a mile from home ,push the beast back in glorious sunshine and lose half a stone in the process ,hers a picture of her "sans rear chain" looking all shite and brinney ,unlike it's owner who was hiding against a tree getting my breath back.