# How Do You Measure Bike Wheels

### Many mountain bikes have a 26 inch wheel again meaning the rim plus tire but you can determine for sure using one of two methods.

How do you measure bike wheels. Has a very important role. Although measuring a bicycle wheel including determining the size of both the tire and the rim can be accomplished by either of two methods both are simple to complete. Sometimes you might even need to know the circumference of a bicycle wheel which is also a simple determination that can be achieved in multiple ways. 12 inch 14 inch 16 inch 18 inch 20 inch 24 inch and now even 26 inch.

If it s too low you won t have enough power in your feet. For a built up wheel it is easier to measure the rim s circumference. Most bikes whether road or mountain are now measured in metric units but you may find some manufacturers that still size mountain bikes in inches. Some brands such as moots even mix the two.

In mountain bike racing i have experienced that when the saddle falls one inch down from normal i lose about 25 50 of my force i better stop and let the group go then fix it and lose 15 seconds but i do catch the group and can even get the next group ahead. The wheel size for a mountain bike or any other type of bike is a combined total of the rim diameter and the thickness of the tire itself. Kids bikes come in these different wheel sizes. Wheel size is a very important metric if you are a child because you need to be able to stand over your bike if you want to ride it and wheels that are too big won t let you do that.

If you are working with an empty rim it is easiest to measure the diameter but if you have a built up wheel the hub will get in the way of the tape measure making it difficult to get an accurate measurement. 622 is the equivalent of a 26 wheel size so you ll be looking at a slicker 26 tyre to replace the smart sams with the weight of the bike you will just need to make sure you don t go for anything too narrow or you will affect the comfort of the bike and possibly be at risk of damaging the rims. The kids bike sizing guide below will give you an overview of the various kids bike sizes and show you how to choose the best size bike for your child. After measuring you can refer to a bike size chart as provided in this article to find your child s suitable bike size.

What you will see in these charts is that adult bikes are generally measured by their bicycle frame size. To measure the inseam you need a yardstick and a medium sized book. Measure the diameter of the existing tire as illustrated above d or look on the tire for the size it looks like this. If you find the tire size the first dimension is the tire diameter the second dimension is the tire thickness.

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