Standard 26

Great tire !!! I’ve put about 300 miles on them well worth the price..

Satisfied so far..too soon

Worth the price. High quality with metal valve stem.

There isn't much to say. These are great innertubes and I was glad to be able to find them in the 3.5-4.5 inch size since I'm putting them in 4 inch tires and think these will provide the best fit. My main reason for buying Kenda tubes is that the valve stem is metal at the base, so yo don't have to worry about the base of the valve stem getting damaged by rubbing against the edges of the hole in the rim. There aren't many, if any, other tubes that offer this.