VLB1T is a Vespa frame VIN code.

VLB1T vespa models

150 Sprint (1965 - 1971)

Vespa Sprint is the successor GL has the same layout and design is the same as the GL, but updated styling to match other contemporary largeframe Vespa. Scooters come in two different versions. Initial model, called the Vespa Sprint, were made until 1968. The model, called SprintVeloce Vespa, built starting in 1969.
The Vespa VLB model was made from 1965 – 1974 and has a squared front headlight. It is larger on this model than compared to the VBB and VBC model. The rear tail light is squared and larger than the VBB model. The rear fender is more squared and larger than on the VBB model. The front fender in squared. The odometer is oval shaped.
Body on Sprint is an evolution of that in GL are almost identical but the hood and front fenders to more corners on Sprint. On the hood has more sharp lines around the outer edge of the top. In addition, the aluminum strip on each hood and bulging front fenders. On the side of the motor, there are air vents cut in tuudung and no lift lines that highlight the louvers. On the right side there are two patches that say "Vespa" and "Sprint" in cursive. On the back, there is one emblem located on the bottom of the frame reads "150 Sprint." In the middle of it there is a symbol emblem "Piaggio".

150 Sprint Veloce (1969 - 1979)

In Sprint Veloce, emblem changed. Rectangular aluminum rear emblem reads "150 Sprint V" with a black background. Emblem "Piaggio" also changed menjadibentuk octagon. In Europe, the head of Sprint is sepertiyang trapezoidal lamp model is used in the GL and Super Sport. However, in the U.S., the headset is not in use. Instead, the U.S. model has a new head with round headlights. American law requires sealed beam lamps, and Piaggio choosing a single head design on all their scooters to accommodate it. Head is similar to that used on the Vespa and Vespa 125 Super Smallframe in Europe. The very early Sprint use the same headsetkepala Smallframe 125 with inset lights (non-sealed beam) y ang match with two tabs at the top of the lamp and the adjuster on the bottom. Having lights bilat sealed and made by Siem. Kromtebal wear rings. On European models, the rear lights similar to those used in the GL and Super Sport. However, the regulatory changes in the United States due to not only the substitution of the headset (head) are different, but the rear lights are different, too. It is a style rear lights that are used in the last Vespa Super Sport for sale in the United States. The rear lights are not fitted to the body as the rear lights before, but attached to the body with a metal rod that also serves as the holder plate. The shaft and the rear lights round metal painted the same color as the body. A small square reflectors added to each side of the metal in accordance with the regulations at that time. Sprint Veloce then have the same version of the rear lights. Vespa is based on two-port 150cc powerplant in the GL but some internal modifications were made to improve the performance of the Sprint. Sedikit.Gearing increased compression strength slightly modified to accommodate the increase, as well as the flywheel and clutch. The big change on vespa veloce include: design modified from the design with the addition of two major ports third transfer port at the top end. The compression ratio is 7,5:1 to 7,7:1 back up Sprint. Carburetor used on new motor Thisis SI20/20 and have a larger air filter from Sprint before. Exhaust also changed slightly to accommodate the motor change.