Good Day el jEfE, I have enjoyed reading your first post and as I live in a smaller area and my experiences are similar to yours, I am also know as the guy with the weird folding bike, or for me maybe the weird guy with the folding bike who creates long lines at the local Post Office when I am shipping orders.
One of the reasons I decided to sell Strida bikes was the existence of this forum and the help and support available to Strida fans from other Strida fans especially by Blackstridaaustria, who has helped me many times.
I also read every post on this forum and usually learn something new.
I do stock tubes to fit the 18 inch wheels, I am continually adding to my stock so if you need something I don’t have please ask and I will try to add it.
Enjoy your Strida SX with Spring just around the corner,
Cheers Bill Wilby http://www.stridacanadawest.ca