Memorable Motorcycles - 1973 Yamaha Monoshock Photo Gallery

A rare picture of one of the first Yamaha Monoshocks.

Yamaha designed it 250 engine to have a wider power band and be extremely efficient due to the reed-valve assembly.

Yamaha was very proud of its newest design in 1973. Shown here is an advertisment for the Monocross system.

The monoshock was designed to transfer rebound energy back up through a steering damper reducing fatigue on the rider.

Sweden's Hakan Andersson wasn't sure of Yamaha's new design and put off its racing debut.

Hakan Andersson was hired by Yamaha in 1972 to help develop its new monoshock design.

Yamaha and Hakan Andersson banked on their popularity.

The first time Hakan Andersson laid his eyes on the Yamaha Monoshock design was at a top-secret testing facility.

Hakan Andersson and his championship winning 1973 Yamaha Monoshock.

Hakan Andersson took the win over the Wuustwezel Round in 1973.

The 1973 Yamaha Monoshock was poised to upset the design of all motocross bikes, but it quickly dissolved.