What size tires are on the Aveny? Sabrina June 20, 2019 16:54 Updated The Aveny is equipped with a tire size of 27.5"x1.75". Related articles What is the step-through height? Blix Aveny Assembly Instructions Can I adjust the seat height? What about the handlebars? What bags can I put on the rear rack? Does a child seat fit on the rear rack?