How Do I Choose A Road Bike Wheel: A Comprehensive Guide

What are the optimal wheel sizes for road bikes? In the realm of road racing, the 700c wheel, measuring 622 mm or 29 inches in diameter, stands as the predominant choice. However, road cyclists might also encounter the 650b wheel, which measures 584 mm or 27.5 inches in diameter, employed in specific riding scenarios. These distinct wheel sizes each bring their own set of advantages tailored to various styles of riding. To gain a comprehensive understanding of which wheel size suits your needs, it’s essential to explore the unique characteristics and applications of both the 700c and 650b wheels.

Is a 29-inch wheel the same as a 700C wheel? The answer lies in their shared ISO rim size of 622 millimeters. However, it’s important to note that while the rim diameter matches, 29-inch tires are typically wider than those designed for 700C road rims, making them incompatible in most cases. 29-inch tires are particularly favored among mountain bikers and are often referred to as 29 MTB tires. Additionally, for certain specialized bicycles like randonneur bikes, you’ll come across the 650B wheel size with an ISO rim size of 584 millimeters. This variation caters to specific cycling needs beyond the traditional 700C and 29-inch options.