Well, yes, and no. As current caretaker of Twike #433 (seen in the photo above), I can attest that the Twike is a convertible, and it is a rag top… not so much a T-top though, from comparing the photos of a 78 Camaro. And the 10-year-old Twike is by no means airtight — my 6-year-old daughter has commented several times this winter ‘Daddy, it’s snowing in the Twike’ — fine particles of snow you can see in the morning sunlight.

However, I’d argue that getting plenty of airflow is not as easy as it sounds, and requires some manipulation, which I think I’ll be able to pull off this summer (got it from Margaret last fall).

Contrary to what one might think, you DON’T want to take the top completely off. It’s a pain to snap it back on in, and the heat of the summer sun will roast you, even if you have a hat on. Best to roll up (in Twikespeak, you are literally rolling the windows UP in a roll to open them) the windows but leave the ‘top’ in place.

The major problem is that the laminar airflow around the canopy of the Twike is too good — it doesn’t ever drop down INTO the Twike, but keeps on going. Good for efficiency; bad for cooling off. This is coupled with the fact that the canopy of the Twike makes for a very good passive solar heater (great for sunny fall/winter days, but there’s no way to shut it off in th summer).

So I think this summer I will try creating ‘two scoops’ out of the ragtop by ‘skipping’ a snap in the front. This will of course end up making the windows not close all the way, but it will still keep most of the rain out, and should easily redirect the breeze created by movement down into the Twike.

If there are any TWike owners in California, please contact me (contact info is at the link to the video. And if there are any TWike owners planning trips to the Los Angeles or Santa Monica area please contact me. I would love to meet up with you and see the TWIke. Thanks!