If you ever dreamed of owning a rare vintage motorcycle, then there are 21 classic motorcycles and two scooters to choose from in the Shannons Summer Timed Online Auction. The auction runs until 23 February and is headed by a 1929 Harley-Davidson J-Model 1000cc V-Twin (pictured above). Expected to sell with ‘no reserve’ for $55,000-$65,000, the fully-restored Harley with its…