how to measure

Width is measured in a straight line from the furthest point on one sidewall, across the tread, to the furthest point on the opposite sidewall.

The aspect ratio is the height of the tire sidewall. A smaller number means a lower profile, and the height-to-width ratio is shown as a percent.

Rim diameter is the diameter of the rim/wheel on which the tire will be mounted, in inches.

tire width
tire aspect ratio
rim diameter
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Motorcycle Inner Tubes

Keep your tires rolling with motorcycle inner tubes designed for reliability and fit. Essential for spoked wheels or puncture repairs, these tubes get you back on the road fast. Dennis Kirk carries a full selection of inner tubes for all motorcycle types.

Made from durable rubber, motorcycle inner tubes resist leaks and wear, offering a dependable seal inside your tire. Available in various sizes and valve styles, they’re easy to install and built to last. Stock up with tubes that match your ride’s needs.

Find motorcycle inner tubes at Dennis Kirk for the best prices and fast shipping. Stay inflated and ride ready—shop now and get yours today. Don’t let a flat stop you—grab your inner tubes now!