What Bike Wheel Size Do I Need

All you need to do input your measurements height and inseam and your type of bike and the.

What bike wheel size do i need. Mountains bikes now come in three different wheel sizes. Depending on your activity the ideal frame size varies for the same person. You can find them with 26 wheels 27 5 wheels or 29 wheels. Being slightly smaller than modern road bike wheels their use persisted on small and extra small road frames that couldn t accommodate a 700c wheel.

Your wheel axle height sets your. One thing that makes bicycle wheel sizes notoriously confusing is the use of different names for the same size. This chart will provide guidance on what tires sizes can match your internal rim width. Mountain bikes road bikes city bikes gravel bikes etc.

The size of wheels for children s bikes is different and will vary depending on the age of the child. A 20 inch bike is the wheel size for a standard kids bike and easiest reference is to think of it as typical wheel size for a bmx bike. Children aged 3 5 years usually need 300mm 12 wheels while 5 7 year olds might require 400mm 16 and 7 10 year olds 500mm 20. The best mtb wheels range from lightweight 1300g race models to super strong downhill options ready to take a beating.

Smaller tire sizes like the 25c is unforgiving on bad roads. Sometimes you can t find any iso size on a tyre only the old school markings. The 700c is an ideal wheel size as it is the standard wheel size for most road bikes. Imperial metric and american.

Here at trek we ve been studying wheel size for nearly two decades alongside mountain bike legend gary fisher and our. 28 1 15 8 28 1 1 or 700 32c which are all 32 622. While there is no real substitute for a professional bike fit this calculator can get you very close in a matter of seconds. Bike frames are measured from the middle of their bottom bracket to the end of their seat tube.

Usually small trainer wheels are used for younger children and can be raised higher as their confidence and skills increase. By comparing this dimension you can see if the brakes will reach when a different size of rim is fitted to your bike. Generally speaking mountain bike wheels for all round use should weigh in the region of 1700 2000g for the pair. Diameter measurement for wheel sizes on kids bikes go down from there with 12 inch bike typically being the smallest bike available ridden with training wheels by the littlest tots.

On road bikes and hybrids no as these bikes will all have a similarly sized wheel. Children over 10 years can usually fit bikes with 600mm 24 or even 700mm 26 which are sizes similar to adult bikes. Wheels with an iso diameter of 584 mm were originally known as 650b and were first introduced on french touring bikes in the 1960s. But you also need to consider other factors such as tire sizes.

27 5 also know as 650b or 29 called 29ers with traditional 26 wheels reserved for dirt jump freeride and kids bikes. Tyres of the same size may come with lots of different markings. Remember the bigger the wheel the smoother the ride. 29 x 2 0 27 5 x 2 4 29 x 2 8.

Switching from 630 to 622 for example needs another 4mm of brake reach. There are many types of bikes. Most mountain bikes today are offered in one of two wheel sizes. Tire size chart for bicycle rim when it is time to replace your well worn tires it is a good opportunity to unlock the full potential of your wheels by trying something new.

If all three have a 15 frame there will be a height difference between them due to their wheel size. A 32c is a good compromise. These widely used measurements refer to the tire s diameter and are typically paired with a tire width in inches when written out i e.