What is the radius of the wheels on a bicycle by height

Cross-country capacity of the bike from the size of the wheel

radius, wheels, bicycle, height

Two things affect the flotation of a bicycle:

  • Profile;
  • Tire width that must not be less than 2 inches.

The profile with a deep, sculpted base will allow the cyclist to navigate any rough terrain. In this case, the 24 “model will be much more maneuverable and more comfortable on rocky and sandy soil than the 29″ model.

The dependence of the size of the wheel affects the permeability, therefore, to save energy on difficult territory, models with a small wheel diameter are chosen.

It turns out that before buying, you need to define a couple more criteria:

  • What is the transport for;
  • How often will it be used on stony and sticky soil.

Note! Depending on the purpose of the bike, you can already select the model you like. But! In the search, you should not dwell on well-known brands and popular models, this indicator often confuses buyers and pushes them to purchase the wrong vehicle.

How wheel size affect the Acceleration

You can determine the size of the bicycle frame according to the following principle: the distance from the tube under the seat to the carriage assembly is measured. Depending on the change in the pipe, the rest of the parameters will change proportionally.

This distance can be converted to inches to determine the size of the bike you need. On average, 2.5 centimeters is equal to one inch. This calculation will give the size of the frame.

When choosing models for personal parameters, it should be borne in mind that models from 27 inches are suitable for a tall and thin physique, and models from 27 inches are suitable for a fuller and lower one. up to 26 inches inclusive.

Such a selection will allow the cyclist to feel better grip on the road, and it will be possible to maneuver vehicles in a dangerous situation. Taking into account the riding style and sports fitness of the cyclist is a good choice.

Yes, in this article we will raise this issue, the reason for the heated debate on forums and holivars. What choice, in favor of what wheel size, should a person make, who opened the door to the world of MTB, or just decided to change their old 26er, for something more modern, meeting the increased needs and skills of the owner? First, let’s figure out where these wheel sizes came from.

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Wheel angle of attack.

This is the angle that forms when the wheel hits an obstacle. The difference in angle can be seen in the picture below.

29 wheels have a palm here. the angle is smaller, respectively, the wheel will not slow down much, passing through the obstacle and the passage itself will be more comfortable for the cyclist. But 27.5 wheels will noticeably reduce the speed, up to a stop, if the angle of attack turns out to be very large. The same applies to pits and potholes. where the 29er will pass comfortably and without slowing down, the 27.5 wheels may critically lose traction or, as they say, “stick in” and stop completely!

How to choose a bike by year of manufacture?

Almost every bicycle brand has its own lineup, which is updated annually. Bikes produced with a difference of a year or even two do not always differ greatly in characteristics. For example, the latest model came out in a new color or is equipped with a different type of brakes. But the price of the latest version will always be higher. Therefore, before choosing a bike from the manufacturer’s new collection, take a closer look at last year’s models. Such a purchase will not only save the budget, but may also be more successful in terms of technical equipment.

Wheel size comparison

In wheels, a lot depends on the diameter: roll-forward, wheel grip and ride safety. As the diameter increases, the quality of the rim increases and so much the better for the rider.

Know about different between Bicycle wheel size of 26, 27 & 29er

24-inch wheels

  • Rim diameter: 507.
  • For adults and adolescents from 140 to 170 cm tall and weighing up to 70 kg.
  • There are models with adjustable handlebars, seats and the ability to fold the bike.
  • Models are suitable for city walks and road trips.
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Bicycle wheel size and features

As the season approaches, the streets are filled with cyclists. kids on a bicycle with side wheels, their dads and moms on the mountain. The wheels are small, huge, wide and narrow how not to get lost in this sea of ​​spokes and sizes?

The easiest way is to systematize this variety in a summary table of sizes:

Wheel size (inches) Rim size (mm) Types of bicycles
twenty 406 Baby, folding
24 507 Stunt, teenage
26 559 Mountain, walking
27 622 Road
27.5 584 Mountain
28 622 Hybrid, road
29 622 Niner

And it immediately becomes clear what the size of the bicycle wheels depends on. For example, from the driver’s height or how the bike is positioned.

Relationship with growth

For very young cyclists, wheel and frame size is critical. While the baby is not very well oriented in space, the bicycle poses an increased danger to his health. Therefore, the wheels and frame are selected in such a way that the child’s leg, which is freely lowered down, reaches the ground. Hence the choice of small wheels. As for folding bicycles, the main requirement for them is small dimensions. A diameter of 20 inches is optimal for this.

As the child grows, so does the size of the bike. this is how teenage bicycles with 24-inch wheels appeared. And even after reaching an average height, you can select models with large wheels that allow you to ride with comfort and gain high speed if necessary.

For leisurely walks, 26-inch wheels work well, this size is great for transporting a bike. However, it does not take up much space. If speed is important, the 27-inch size is more suitable. These rim dimensions are typical for road bikes. You can also navigate which bike is right by the frame.

29 ” wheels are ideal for people with a height of 180 cm and above.

Here are some figures for the most popular models, more precisely, the size of the frames and their ratio to the height of the cyclist:

  • Height 190 cm (and more). road 50-52, road 46-48, mountain 41-44.
  • Height 180 cm. road 57-59, road. 56-58, mountain. 48-50.
  • Height 170 cm. road bikes 53-55, road bikes 50-52 and mountain bikes 44-46.
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So everything is interconnected. rim diameter, frame size and rider height. Of course, these are not strict rules, but only a recommendation and hint when buying a bicycle. There are more accurate tables, which take into account not only height, but also the length of the legs. However, this is more true for athletes performing tricks or setting speed records. The average two-wheeler will have enough of the above tips and the ability to adjust the saddle and handlebar heights.

Buyer’s guide to road bike wheels. Different types of wheels | Cycling Weekly

Maybe someone else will need to buy a stem, but, in any case, first you need to understand exactly for what purpose the bike will be bought. From folding models, no one will expect an ideal fit or speed characteristics, and almost all cruiser models are designed only for leisurely defiles on flat paths. Tires play a huge role in the “size” of wheels for a bicycle.

Models familiar to all with their characteristic frame shape and dimensions acquire a completely different look with a change in tire dimensions. An example of this is the emergence of a fat bike. An ordinary bicycle, “changed” into wide tires, set on suitable rims, has absolutely changed. Not only the appearance has changed. control, acceleration dynamics and much more have been completely changed. So it is with standard wheel sizes. It is enough to put “slicks” instead of aggressive rubber. acceleration becomes noticeably easier and less effort is required to maintain a constant speed.

Help: Slick, slicks. (slick) type of tires without a raised tread, which reduces the grip area with the road surface.