How to Choose the Perfect Bike Size for You

how to choose perfect bike size for you

Bikes are purchased for a variety of activities, such as racing, road biking, mountain biking, touring, and commuting. Regardless of your purpose for investing in a bicycle, it is essential that you purchase the ideal bike for you. Otherwise, you’d be squandering your money. The most basic idea is that knowing what is beneficial for you is the best approach to maximize the riding experience.

It is very important that the bike you buy is the correct size for you. Selecting an oversized bike might result in you losing balance on the bike and having to cycle harder. Choosing a smaller bike, on the other hand, may result in a restricted riding posture, limiting control of the bike. It’s simple to find a bike type you like, but it is slightly more difficult to find one that fits. While many people think that finding the correct bike size is a difficult task, it really isn’t.

When determining the size of a bike, a number of criteria must be taken into account. The bike size you choose is determined by the type of bike, your height, riding style, and personal taste. A properly fitted bike is more comfortable, practical, and enjoyable to ride.

  1. Type of Bike

The type of bike you intend to purchase is the most essential factor when choosing a bike size. Do you intend to ride your bike for fun? Or are you planning to take it on lengthy journeys? Do you intend to purchase an electric bike? Or do you want to master bike stunts and tricks in non-traditional rough terrain? There are many different tastes, and practically every taste has its own kind of bike! All you have to accomplish now is identify and recognize your needs before deciding on the sort of bike you want to purchase. This can help you refine your search on the correct bike size. The sizing chart for each type of bike is different. You can always ask for help when buying a bike, whether it is at a store or online. Call 07 3924 7166 to find which SmarCycle Electric Bike will be the best fit for you!

  1. Frame and Inseam

The inseam is another significant factor. The frame’s top pipe should be farther below than the crotch area. The inseam can be measured in a couple of ways. The easiest way is to stand with your legs around 15-22 cm apart without any footwear. Then measure the length of your leg from the ground to your crotch. Another method for measuring the inseam is to place a book between your legs, with the spine of the book very close to the crotch. Measure the height of the spine against a wall. This is also a wonderful technique to evaluate the inseam and choose the appropriate bicycle.

Make sure that there is a space of at least 2 to 5 inches between the top pipe and the crotch area. This will make riding the bike more pleasant and you are less likely to injure yourself in case you forcefully brake hard in an emergency.

  1. Comfort

If you want to know how comfortable the bike is or how it goes with your riding abilities, you should test it or a bike that is comparable in size and function. You can’t make this choice by simply checking out the bike. Rather, you should go for a ride on the bike. Only riding the bike will make you see the ease, riding position, fluidity, and anticipated pleasure!


The simplest approach to deciding your bike size is to measure your height. The frame size of a bike is generally defined by its length

We have given the appropriate bike size according to your height in the tables below. You may notice that some height and inseam intervals coincide – depending on your measurements, you may be on the boundary of two frame sizes. Sizing a bicycle is a calculated skill and at the end of the day, you’ll have to try on a few sizes to figure out which one fits you best.

Height Inseam Length Road Bike Size
147 cm to 155 cm 65 cm to 69 cm 46 cm to 48 cm
152 cm to 160 cm 67 cm to 71 cm 48 cm to 50 cm
157 cm to 165 cm 70 cm to 74 cm 50 cm to 52 cm
163 cm to 170 cm 72 cm to 76 cm 52 cm to 54 cm
168 cm to 175 cm 75 cm to 79 cm 54 cm to 56 cm
173 cm to 180 cm 77 cm to 81 cm 56 cm to 58 cm
178 cm to 185 cm 80 cm to 84 cm 58 cm to 60 cm
183 cm to 191 cm 83 cm to 86 cm 60 cm to 62 cm
188 cm to 196 cm 85 cm to 89 cm 62 cm to 64 cm


Height Inseam Length Mountain Bike Size
150 cm to 160 cm 63 cm to 69 cm 13 – 15 inches (S)
160 cm to 170 cm 69 cm to 74 cm 15 – 17 inches (S or M)
170 cm to 180 cm 74 cm to 79 cm 17 – 19 inches (M)
180 cm to 188 cm 79 cm to 84 cm 19 – 21 inches (L)
188 cm to 197 cm 84 cm to 89 cm 21 – 23 inches (XL)
193+ cm 89+ cm 23+ inches (XXL)



Another way to find your frame size is by multiplying your bike type with your leg inseam.

You can find the size for your bike type from the following:

  • Road Bikes: x 0.70 cm
  • Mountain Bikes: x 0.60 cm

For example, if your leg inseam is 70cm and you want a road bike, then the correct bike size for you would be around 70 x 0.70cm = 49cm.


Size and adjustment are at the root of many bike size related problems. Use these markers to verify you have the correct frame size if you are dissatisfied with your bike for whatever reason. Or else, find a frame that is the perfect suit for your figure.

  1. Your hands should be shoulder-width apart when grabbing the handlebars.
  2. Check to see whether you can grab the handlebars without arching your back.
  3. You should be able to rest your feet on the heels of both feet when you set them on the ground. You should be able to alter the seat height if the frame is indeed the proper size.

Taking measurements at home is often enough to determine an exact frame size. Or, you can try out a few bikes and consult an expert to help you choose the proper size – just contact SmarCycle, Australia’s leading Electric Bike Company.

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