The TM250 is the first-ever Japanese motocross bike. In 1966, the Suzuki factory sent
two engineers and a road racer to Europe to begin developing a motocross bike. Though
single-cylinder and twin engines were tested, Suzuki settled on a single-cylinder design
that was heavily influenced by the 1965 CZ twin-port 250 model. Early GP results were
dismal, but Suzuki came back with an improved machine in 1967 dubbed the RH67.
The power was peaky and handling was subpar compared to the European-built
machines from Husqvarna and CZ, but despite this, Suzuki decided to build just over
100 production bikes based on the RH67 twin-piper—of which 65 came to America.
The TM250, as it was called, was raced in America by riders Preston Petty, Walt
Axthelm and Gary Conrad with some success. The TM was sold with a complete parts
kit that included pistons, rings, replacement clutch parts, gearing, and carburetor jetting.
The RH67/TM250 has become the number-one collector motocross bike in America. The
price for a good example has almost doubled in the last 10 years, and I wouldn’t be
surprised to see these worth over $100,000 in 10 more years.
Estimated value: $40,000.