Antique 1949 Manton and Smith Golden Zephyr Balloon Tire Cruiser Bike with Bike Lok Protection. This Golden Zephyr is Quite an Rare Deluxe Postwar FatTire Bicycle with Unique Features like: Triple Spring Dual Action Spring Fork, Tank, Bike Lok, Zephyr Chainguard, and others. At first glance the Manton & Smith Bike can appear a tad on the Shoddy side because of there use of mediocre after market components, but after working with the bike, M&S Built some Top Quality Classics. Manton and Smith produced Prewar and Postwar ballooner bicycles out of Chicago Illinois.