During 1951, many improvements were made on Vespas. Old type of push-rod linkage (Bowden) was replaced by a new type of soft control cables for the shifter. Rear suspension was now fitted with an hydraulic shock absorber. The old style front coil spring type shock absorber was now supported by a new hydraulic absorber.
The footboard is now longer for passenger and more confort. And for the center stand, it will be available for 1949.