At £70 I won't be buying those. So why doesn't Kenda list the 3" on their website or are the tyres on the Rio FB a Chinese copy? I didn't think there would be a problem getting tyres for the Rio when I decided to buy. Oops.we keep spare tyres but I must say, 26 x 3 (or 72-559) tyres are difficult to find.
I only found one other supplier on ebay so far:
https://www.ebay.co.uk/i/152288937417
There are more in 60-559 and of course 100-559.
Will look into other widths.