Anyone heard or seen these?

 

Never heard of them. There’s no reason for a Trike specific rear tire. The size is an off the shelf car tire.

I ran Michelin Pilots in the rear, and Avon Cobra Trike tire in front.

I got great handling and mileage.

 

Fee rubber is a off brand.. get you some Michelins

 

I prefer to stick with a name brand tire company, like Michelin, Dunlop, etc. I am running Michelin Defender T+H on my TG.

 

I have picked a tire that can be replaced if necessary on the road, when on a trip. Michelin, Cooper, Goodyear, etc.
I have passenger car tires and not low profile. The taller the side wall, the better the ride.
I run 2 wheel, rear tire on my steering.
Hope this helps.

 

For those of you running GY Assurance are you still running 22-24 lbs in them.

 

I am.
best thing I've done to the trike as far as comfort and handling.