Photo by Jim Koenigsaecker Ed Sims riding his CZ during an American Historic Racing Motorcycle Association vintage motocross race at Burrows’ Ranch in Chrome, California.

Photo by Jim Koenigsaecker Chuck Bollwinkle on his BSA at the starting line.

Photo by Jim Koenigsaecker Charlie Higdon riding Rob Poole’s BSA.

Photo by Jim Koenigsaecker Bryan Wenzel taking a lap around the scenic Burrows’ Ranch on his TriBSA.

Photo by Jim Koenigsaecker The shadow of a BSA.