Bonhams’ third annual Collectors’ Motorcycle at the Barber Museum auction on October 10 will be featuring five impressive vintage BMW Motorcycles. The BMWs range from 1928 to 1957, with two of them featuring sidecars. Impressively, all five motorcycles are in running condition, and are being offered for auction by Bonhams with no reserve. Here’s a rundown of the five BMWs on offer:

1928 BMW R 57. Featuring a 484cc boxer motor with one overhead valve and a single side valve, put out 18 horsepower at 4000 rpm. With shaft drive and a three-speed transmission, the R 57 weighed in at 331 pounds. It’s a rare model, as it was produced for just three years.
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