What does 26" Bike mean?

It specifies a 50 mm section width and a 22.0-inch bead-seat diameter.

What is the overall diameter of the 26" Bike Tire?

Its overall diameter is about 660.0 mm, with a circumference of 2073.5 mm.

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26" Bike Tire Size & Dimensions

Tires

Estimated Size (based on pre-release information)

The 26" Bike Tire has a section width of 50.0 mm ( 1.97 in), a 50.5 mm sidewall, and an overall diameter of 660.0 mm ( 25.98 in). It rolls 2073.5 mm per revolution. It weighs 700 g (1.54 lb).

Exact Dimensions

26" Bike Tire exact dimensions in millimeters and inches
Dimension	Metric	Imperial
Section width	50.0 mm	1.97 in
Sidewall height	50.5 mm	1.99 in
Overall diameter	660.0 mm	25.98 in
Rim diameter	559.0 mm	22.01 in
Circumference	2073.5 mm	81.63 in
Revolutions per mile	776.2	776.2
Weight	700 g	1.54 lb

Calculate another tire sizeCompare diameter, circumference, clearance change, and speedometer impact for a replacement tire.

Size in Context

The 26" Bike Tire has a section width of 50.0 mm, a sidewall height of 50.5 mm, and an overall diameter of 660.0 mm. Each revolution covers about 2073.5 mm. It weighs about 700 g.

The 26" Bike Tire is a vehicle component, so its outer diameter, width, and profile describe the space it needs rather than a pocket or desk footprint.

At 700 g, the 26" Bike Tire has the substantial feel expected of a vehicle component; size and weight both matter for fit and handling.