The practical 5-liter spare tank was specially developed as an accessory for the Vespa 150 GS models - vehicles that were the first to combine real touring capability with style and comfort.
The tank is not permanently integrated into the fuel system, but works like a classic canister. When the fuel level is low, the contents can be manually transferred to the main tank.
Conclusion: A useful accessory for longer tours - and at the same time a stylish design highlight for every GS rider.