How wide are MTB rims?

What width are mountain bike rims?

It’s common for modern rims to measure around 21mm for road and 30mm for mountain (internal width). There’s now a huge range of wide rims from every manufacturer.

What width tires fit on what width rims MTB?


Use Internal Width IDEAL TIRE RANGE*
Road-carbon 17-23 25-28mm (or per manufacturers recommendation)
Gravel 21-26 28-50mm
Cross Country MTB + Bikepacking 26-32 1.9”-2.5” 48mm-63mm
Plus 35-45 2.5”-3.0”

How wide are 27.5 rims?

Your 27.5 wheels are actually 23in in diameter.

Can I fit wider tires on my rims?

As a general rule of thumb, it’s safe to fit a tire up to 20 millimeters wider than stock on the original rim. The actual width of the tire will vary depending on the width of the rim: The tire will expand 5 millimeters for every half inch (12.5 millimeters) increase in rim width.

Does rim width affect tire diameter?

The width of the rim will influence the width of the tire. A tire mounted on a narrow rim would be ‘narrower’ than if the same size tire was mounted on a wide rim.

Rim Width Range.

Difference From Measuring Rim Rim Width Approximate Tire Section Width
1.5″ wider 7.5″ 8.83″

How do I know my rim width?

The only way to accurately measure rim width is by measuring a bare, unmounted wheel. Using a straightedge ruler or metal tape measuring tool, measure the distance between the two opposing rim flanges from the inside face of the outboard flange to the inside face of the inboard flange, or bead-seat-to-bead-seat.

IT IS IMPORTANT:  Frequent question: What does the bike sign mean?

Are 27.5 wheels going away?

29in might be stealing the headlines – and the sales – but 27.5in won’t be disappearing anytime soon. Or shouldn’t be anyway… Six reasons why 27.5in wheels still deserve space in your garage. Even if it may only be as a rear wheel…

Is a 29 inch wheel the same as 700C?

29″ (ISO size 622) is actually the same rim diameter as 700C, although most 29″ tires will not fit 700C road rims because they’re too wide. … 700C (ISO size 622) is the most commonly used size for modern road bikes.