Yeah, any constant speeds over 50 mph you'll need a better tire than an average bicycle tire
But for speeds up to 50 mph I recommend Cheng Shin Classic Knobbies
I ride all day at speeds of 40 - 45 mph and can go 50+ mph if I want
I put over 41K miles in 18 years on my Whizzer and never had a tire failure running 26x 2.125 Cheng Shin Classic Knobbies
Yes I go on 100 miles ride too, so those tires have been thru alot of abuse, Back tire lasts about 1500 miles
The Classic Knobbie also has the original Whizzer Retro look