Saw this article.   Has a Radwagon in the picture and talks about using it in winter months.   I thought it was good. 

Treehugger Voices
Yes, You Can Ride an E-Bike All Winter Long

https://www.treehugger.com/you-can-ride-e-bike-all-winter-5095699

I touched base with Tannus to see if they plan on offering a new tire insert size for the Radwagon 4.   I was pleased to hear that they are working with Rad on this right now.   I was also pleased to hear that they have a size that will work today.   It requires a different size tube but you can find that size on Amazon.   The reply to my email is below.   Here is a link to that product he is talking about.  Sounds like Rad might offer this direct in a few months
https://tannusamerica.com/collections/mountain/products/tannus-armour?variant=15335268483107

BTW I did inquire that he was indeed talking about the new 22" x 3" tires and not the previous 24" size.   He did confirm that he is talking about the new 22" tires

---------------email reply-----------------------
We are actually working with Rad Power Bikes on this size right now.  We have a 24x1.95-2.5 that fits perfectly in this size. You will need to buy a new tube 22x1.75-2.3 should work fine for your needs (we don't sell this size on our site but you can get it on Amazon). Please let me know if you have any other questions.

All the best!

Dave Ballard
Tannus America
dave@tannusamerica.com
www.RideTannus.com

Just wondering what others are using for pannier bags/storage baskets etc on the Radwagon.   

Just wondering if anyone has used the Radwagon off road.   The Radwagon 4 has bigger tires but more of an on road tire.   Most of my riding is going to be paved streets.   Some roads are dirt/gravel.  I also am going to do some trails.  Is going to a street (non knobby) tire going to make that big of a difference?  Coming from a 29er mountain bike but I don't do mountain bike trail much at all.   I use it more of a commuter.