This one’s pretty simple. This Triumph Speed Twin used to be Steve McQueen’s. Who doesn’t want one of Steve McQueen’s old bikes? Sweetening the pot a little is the fact this particular bike was restored by none other than Bud Ekins in the mid 1970s. It was then sold at McQueen’s estate auction in 1984 and has now resurfaced for sale again. The bike comes with all documentation, and of the 10 bikes on this list will probably be the one that sells for the highest price.

1938 Triumph Speed Twin