If you have money burning a hole in your wallet and are looking for early 70’s motocross and desert bikes or mid-60’s Triumph motorcycles, you need to head to Las Vegas on June 1, 2017, to bid on some of the Zimmerman Brothers motorcycle collection. The brothers appear to be thinning out their herd (they have over 300 bikes in the collection) at the Mecum Auction in Vegas. While the offering is an impressive mix of bikes, the Brothers are not offering any of their super-collectable items (championship bikes, a CZ still in the crate, celebrity-owned bikes).