If all three have a 15 frame there will be a height difference between them due to their wheel size.
Standard mountain bike wheel size.
Kids speciļ¬c mountain bike fit and size many of the same rules apply for the young uns whatever their age but there are also a few extra considerations to be aware of.
Mountains bikes now come in three different wheel sizes.
In terms of mountain bike wheels 650b is a standard 27 5 wheel and 700c is a standard 29 wheel.
Bike frames are measured from the middle of their bottom bracket to the end of their seat tube.
As with most bike wheel naming conventions the term 26 inch does not refer to the diameter of the wheel itself but rather the approximate outside diameter of the tire that fits this wheel size.
The 29er another popular size for mountain bike wheels and tires.
Some special tires can even be wider up to 3 inches with some models.
The bikes are usually.
26 inches 27 5 inches and 29 inches.
Tires are also measured in width.
26 inch wheels offer unmatched maneuverability.
Tires come in three diameters.
27 5 also know as 650b or 29 called 29ers with traditional 26 wheels reserved for dirt jump freeride and kids bikes.
142mm was the clear standard for nearly a decade for almost everything except serious enduro and dh bikes which often used the wider 150mm standard.
26 inch wheels long considered the standard wheel size in the mountain bike industry 26 inches is likely the size of the wheels you have on your mountain bike now unless you actively sought out something different.
This varies from 1 6 to 2 5 inches.
You can find them with 26 wheels 27 5 wheels or 29 wheels.
As the standard for mountain bikes this size is used on many high performance folding bikes including montague s paratrooper line.
These size labels come from an old french sizing standard which we ll cover in more detail in the french sizing section.
Most mountain bikes today are offered in one of two wheel sizes.