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piston-ported logo - 1.9 K piston-ported logo - 1.9 K

The GS150, Piaggio's first attempt at a production sporting scooter (there had been some factory works racers prior to that), debuted in 1955 with the VS1 and continued in production with constant upgrades until 1961 (VS5) and was replaced by the larger and more purpose built GS160. The GS150 offered several improvements over the standard Vespa fare, including more stable 10" wheels, a standard dual seat, a sizable jump in horsepower (8hp vs. the VL1 150's 5.5hp), and a serious dose of esthetic improvement over the kitschy 8" wheeled bikes. 126,350 GS150's were produced over a seven year period.

My 1958 G.S. VS4 came to me partially restored from Mark Cook, who had managed to collect a 85% of the needed parts. Well, of course, once I had the bike the other 15% took me over a year to find and tripled! the total cost. But, as these things go, once I had the finished product on the road, it all seemed like a small price to pay. My bike (pictured above) is a bit on the heretical side as the GS150 was only offered in silver, which seemed to me to demand that I paint it any color other than silver. The flying lady on the fender is a gift from a 1941 Caddy (the English have Jaguar, we Yanks have Cadillac).



Woo hoo! Stop the presses, after two long years being GS-less, I've got another one, A 1961 Cushman Vespa GS VS5, and it's a beauty. See the Cushman connection page below.



GS150 introduction and technical data

VS4 Introduction

Assembly Tolerances

Differences between VS4 and VS5

Jim McCabe's Guide to the GS

The Cushman connection

Vespa GS150 vs. Heinkel Tourist 175

Wiring diagram for VS2 and VS3

Wiring diagram for VS4 and VS5

A/C conversion by Mike Hanyi

Vespa Sports email list

Srvcsin1.gif - 3.8 K

Over to the GS160 page

Over to the SS180 page

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