Email Cal Bay and ask Dave Kraus I don't work for him. It's probably really technical like why would you need a new computer every couple of years. They look the same too, but change very quickly.
Just a cursory look shows that the one on the right has the ability to lean into curves. Call it a suspension. That will make it much more maneuverable. The Street Strider looks like it might tip over. The one on the right looks like a sports car compared to the suspension of a Model T.
So, who makes the one on the right? Is that a Dave Kraus machine too? Do you have a link to the website where you found that picture. I want to read up on it. Thanks.
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