It was similar to its predecessor, the Lambretta Model A but was refined to improve the ride.

The main aim was to improve ride quality and comfort while keeping the scooter a low cost form of transport.

Its main improvement is in the suspension; the front and rear now has spring suspension, and there is a horizontally mounted coil spring damper on the engine to allow the rear of the engine to pivot.

[1] The handle bars have been moved forward and the saddle has been raised, allowing for a larger fuel tank for a more comfortable riding position.

The tyres were made bigger for greater ride quality, from 3.50*7 to 3.50*8.