Bicycle tyre sizing and dimension standards

Bicycle tyre size - ISO, ETRTO dimension standards. BSD rim dimension - which tyre size fits which rim

Updated: 16/11/2018. What do size marks on bicycle tyre package mean, how to “read” them, which bicycle tyre size can fit a given rim? This post answers all those questions, providing an easy, uniform, standardized way to tell a tyre (tube and rim) size using ISO (ETRTO) standards. For detailed tube sizing gude, see: Bicycle … Read moreBicycle tyre sizing and dimension standards