What Size Bike Do I Need – 5 Methods To Pick Right Size Bike

In order to find your dream bike size for yourself you should pay attention to 5 factors which are picking the right saddle, suitable bike frame size, your inseam height, type of bikes whether it is mountain or road bike and knowledge about bike measurements.

When it comes to finding a dream bike, choosing the right size bike is one of the most important things. Too much discussion on this topic will only complicate matters. However, we think it is very simple and easy. Let’s get started

What Size Bike Do I Need – Important factors

So let’s take a look at how to choose the right size bike for each type of bike. We are going to show you different methods so that you don’t have to worry about making mistakes.

Should Know How Are Bikes Measured

The bike is measured by the length of its seat tube. This measurement is usually taken from the center of the bottom bracket (BB) or the center of the bolt connecting the crank.

It varies from brand to brand, and there are a few measurements at the top, where the jack tube intersects the seat tube, and even in the center of the jack tube.

What Size Bike Do I Need

Mountain bike dimensions are measured in inches or descriptive dimensions i.e small, medium, etc. The unit of road bikes is the centimeter or descriptive dimensions, while hybrid bikes can be any of three.

As the size of the bike increases (relative to the size of the frame), it will also get longer, but different brands could have been longer or shorter.

Find Right Saddle

The right saddle height has a very important role. If it’s too low, your feet won’t have enough strength.

In mountain biking competitions, Riders have found that when the saddle drops an inch from normal, It will lose about 25% to 50% of the rider. Therefore, the correct saddle height plays an important role!

The easiest way to find a suitable saddle

  • Sit your elbows on the bike and lean against the wall (or have someone help you for doing this)
  • Place your leg at the lowest point, but parallel to the floor.
  • Move the saddle up or down until the back of the knee is bent. It should be around 30 degrees, but don’t waste too much energy finding that precise angle.

Bike Frame Size

You should pick bike frame size as per your height. Don’t choose too small or too much large frame size. Below we give a simple chat for your convenient.

Your Height Bike Frame Size
4-11″ – 5’3″ 13 – 15 inches
5’3″ – 5’7″ 15 – 16 inches
5’7″ – 5’11” 16 – 17 inches
5’11” – 6’2″ 17-19 inches
6’2″ – 6’4″ 19 – 21inches
6’4″ and taller 21+ inches

Inseam Height

We should know what our inseam height is. Before we find that we need to know what inseam height is. Inseam height is just a measurement of the highest possible position from ground to crotch, in centimeters.

Inseam measurement can be done relatively easily. we can take measurements with only two people and a book, it takes only a short time to start.

  • Stand with your back against the wall and feet should be 6 to 8 inches apart from the wall.
  • Place the book between your legs and lift your spine until the book mimics a bicycle seat and is placed between your legs
  • Have the second person measure the height (cm) from the top of the book to the floor.

The measurement we get will be inseam height. Before buying a bike you should know about your inseam height, as it is important.

Type Of Bikes

When choosing the perfect bike for yourself, it’s important to understand what to look for. When you walk into a bike shop, You should ask first what type of bike you want, whether it’s a road bike, mountain bike, or hybrid bike.

Your decision depends entirely on your cycling needs and personal preferences. Some people are after speed control, some like the tricks, and some take part in bike races.

Therefore, to choose the best bike for yourself, you need to ask yourself how often you plan to ride, how much are you willing to invest, and what you use the bike for. To do this, you need to understand the different types of bikes available today, each with its unique style, features, and shape.

Some common bikes types are:

  • Road Bike
  • Mountain Bike
  • Hybrid Bike
  • Kids Bike
  • Electric Bike
  • Sports Bike / Track Bike

People Also Ask

What size bike do adults need?

The answer varies as every adult person doesn’t have the same size and it also depends on the purpose of the bike, whether it would be used in off road areas or on city blocks. Different bike types have different sizes like mountain bikes have completely different sizes in comparison to road bikes. So the size of bike completely depends on what type of bike you are willing to buy.

What height is a 24 inch bike for?

24-inch bike term is used for a 24-inch bike wheel. This size of the bike is commonly used for kids or younglings. for 4’5″ to 4’9″ kid 24-inch bikes are the best option.

What age is a 24-inch bike for?

A 24-inch bike can be used by any age group as it is a relatively smaller size than a 26-inch bike. It is most suitable for 8 to12 years old kids.


To find the best suited bike size for yourself requires some methods.You have to consider some things before purchasing a bike rather than just go to shop and buy a bike that looks really great. There can be plenty of factors while choosing the best suited bike.

In this article we pick the top 5 factors which should be in mind while buying a bike for yourself. Those are having the right saddle, suitable bike frame size, knowing your inseam height, knowing the type of bike whether it is a mountain or road bike and knowledge about bike measurements.

Recent Posts