1959 ESO 500 SCRAMBLER FACTS
WHAT THEY COST
This beautiful example was restored by well-known restorer
Eldon Blasco and now belongs to a private Southern California
collector. Value is estimated at over $20,000. Restorable examples,
if you can find them, will still run over $10,000.
250cc, 350cc and 500cc motocross versions.
WHAT TO LOOK FOR
Pay attention to the detailing. A true ESO has lots of chrome
bits and handcrafting. There is pinstriping on the fenders, tank
Call Bertus CZ/Jawa in La Puente, California.
carburetor components. The ESO, which means Ace
in Czech, was taller, longer and heavier than many of
the British four-strokes, but it was fast for the times.
Unfortunately, with the long chassis, heavy gross weight
and slack head angle, it was a slow responder. Better
find a berm!
The engines were so well-regarded that Swede Sten
Lundin used an ESO engine in a Lito frame to win the
1961 World Championship, while fellow World Champion
Bill Nilsson stuffed an ESO engine into a Rickman
Metisse in 1964. With a better chassis, the handling
Unfortunately, the commissars felt that the ESO was
competing too well against CZ, and by the end of the
1964 season, ESO was discontinued as a brand and
absorbed into the Jawa factory. ❏