Landy89 wrote:
The Thermoscud is mostly used because it is waterproof, not because of cold issues. Unless you are driving hours on a Vespa, your legs are not going to get cold because the wind is deflected by the kneeshield - and furthermore the Thermoscud is a bit of an impediment to your feet/legs when you are in stop and go traffic.
The parts of a body which get cold while scooting are: hands and face. So winter biking/skiing gloves, and a full-face helmet are the way to go. Heated muffs or heated gloves is only necessary if you are on the scooter for long periods of time.
I respectfully disagree with regards to usage for cold issues.
On the BV350, there are vent slots on the back edges of the kneeshield to vent the heat from the radiator. The Thermoscud is installed in such a way that the heat that is vented out from the kneeshield is "trapped" under it, keeping the legs warm. I'm unfamiliar with how Vespas radiator setups are, so I can't speak to how effective a Thermoscud would be for trapping the heat from it.
I found that the Thermoscud made a massive difference when riding in the cold. I was comfortable underneath it, even when riding in near-freezing temperatures.