Bicycle Rim Width Tire Size Chart

Over the past five years, rim profiles have changed dramatically, with the most notable change being in width. Some rim models are now available in multiple widths. However, manufacturers often provide vague information about how these rims interact with tires and affect ride quality. In some cases, they even provide different information for rims with similar profiles.

Why Rim Width Matters

The internal width of your rim affects tire shape, grip, rolling resistance, and aerodynamics. Too narrow, and the tire can feel unstable. Too wide, and you may sacrifice comfort or even safety.

Here's what proper rim-tire matching affects:

• Ride Stability – A well-supported tire reduces sidewall squirm and improves handling, especially in corners.
• Comfort & Grip – Wider rims allow for lower pressures, giving better shock absorption and traction.
• Rolling Resistance – When the tire retains an optimal shape, it rolls more efficiently, saving you energy.
• Aerodynamics – A flush rim-tire interface improves airflow and reduces drag — a critical factor for road and triathlon bikes.
• Safety – Mis-matched rims and tires can lead to blowouts, poor braking performance, or unpredictable handling.

The reality is that, as an industry, we are still figuring things out. This leaves a lot of gray areas but also presents numerous opportunities for you, as the consumer, connoisseur, and rider, to provide your input. With no hard and fast rules, you have the freedom to experiment and consult experts to make informed choices. the bike rim width tire size chart to guide you through this process.

MOUNTAIN BIKE  CHART

URBAN / HYBRID / ROAD PLUS / ADVATURE ROAD /GRAVEL /CYCLOCROSS CHART

FAT BIKE CHART

Note:

• Our recommendations are based on rim-tire compatibility tests with some of the most popular tires. This chart serves only as a general guide, as factors such as bead design, inflation pressures, and other variables can affect actual rim-tire compatibility. Please send the rim profile to the tire manufacturer for confirmation.
• We don’t recommend choosing the largest or smallest values within a size range. For example, MTB tire in a range from 1.9” to 2.1”, 2.0” is the optimal choice for most riders.
• This bicycle wheel size chart is applicable only to CBK rims with a unique rim-tire interface. If you are using rims from other brands, please send the rim profile to the tire maker for recommendations.