How to Fit Bike Size Correctly Top Guideline

Fit Bike Size Correctly

How to Fit Bike Size Correctly Top Guideline

If you’ve no idea what I’m on about and keep reading because you need to follow the instruction. I’m going to explain the basics of bike sizing, then show you how to get the right size bike for you.

Even if you don’t understand any of that jargon so guys let’s dive in.

Why It’s Important

You might well be thinking, why do you need the right size bike anyway? Is it really that important? The answer is yes, it is.

If the frame of the bike doesn’t match your physical frame, it just won’t work very well.

It will be uncomfortable to ride the handling or bad, possibly even dangerous, even being a single size too large can lead to real issues as you could end up with an uncomfortable riding position or put a strain on your muscles and joints.

Having a bike that’s too small is equally dangerous. Being cramped on a bike frame can do just as much damage to your body if you even fit on it. That is also extremely bad for the bike handling and it’s the way it shifts the riders’ center of gravity.

It’s easy to hold an egg in the palm of your hand. It’s less easy to bounce it on a finger. Simply put the right size bike frame would allow you to ride and comfort for as long as you want. It’ll deliver exactly the right mix of handling characteristics.

Our designers intended to keep you safe and putting a smile on your face, which is what riding is all about.

How Do You Measure

First, how to measure a bike for you? Well, at Merida, we try and keep things simple by using your overall height as the starting point. It’s also pretty easy to understand which isn’t always the case.

When you get lots of different numbers thrown at yet.

These numerical sizes generally refer to the seat which is critical to giving you the correct efficient riding position with the saddle up at a safe height.

If the seat tube is too long, you won’t have any space to fit the bike. When you have your feet on the floor, this is known as standover.

And if it’s too short, the seat post won’t go high enough for an efficient riding possession.

Your height however is just the starting point as your arm length and length all play a factor in getting the fit correct.

For example, if you have relatively short legs, but quite long arms with height. That means you might be better off with different frame sizes.

Compared to someone the same height as you but has longer legs and shorter arms.

This is where the reach of the bike essentially how much space you have out in front of you comes into play as it has a very large effect on the handling of the bike, as well as your fit.

as frames go up and seat tube size, the reach also grows to keep the rider centered on the. The other element of frame sizing that changes as you go up in frame sizes is the stack, basically the height of the head tube at the front of the frame.

Taller riders need a greater stack to help them being excessively bent over when riding, putting too much weight on the front end of the bike.

Bicycle Geometry

Other bicycle geometry parameters, such as head angle, seat tube angle, and chainstay all have a significant effect on handling, but they generally stay the same as you move through the frame side.

So, they aren’t quite as crucial for getting the right size frame for the sake of simplicity and it’s going to surf over them here.

It’s worth noting that if bike sizing wasn’t complicated enough, it also varies between different types of things.

The main outlines here are mountain bikes where you might choose a different size of the frame because you’d like different handling characteristics.

For example, some riders choose a larger frame size and their height alone would suggest because they want a longer wheelbase for greater stability in rough terrain.

This is why bikes are big trail range of hardtails have much shorter seat tube than you’d expect for the as its size.

It means a shorter rider can choose a larger frame size while still being able to physically fit on the bike while taller riders can still have the right saddle height. If they want a smaller frame size, thanks to long travel, drop a seat post.

Sizing other different kinds of bikes also has its quirks road racing bikes, being a special example, but as a general rule, it’s much more directly related to your height along with arm and leg length factored in.

If you get the correct seat tube size also on your bike will fit well or you can tweak it to fit well.

It’s possible to fine-tune the fit by altering the way the bike is set up, sliding the saddle back and forth on the road.

Changing the height of bars by changing stem spaces, or even switching out the stem for a longer or short log, all of that can help you improve the fit but It won’t turn the wrong size frame into the right one.

However, there are many occasions when you might be unsure, which size frame you fall into either cause you fall either for stem sizes or because your body proportions don’t necessarily fit into what was considered the norm.

while having to a general bike dealer for an in-person sizing and bike fit, still the best way to get the correctly sized bike, but that’s not always possible for various reasons.

That’s why we’ve worked as the specialist of bike fit guider you can also follow online sizing tool. It takes data from thousands of in-person bike fits to give a personalized recommendation, a stranger’s own body measurements, and a huge database of our bike geometries.

Taking into account the specific geometry of the bike you’re looking at rather than being a general recommendation, which makes it much more accurate.


We’ll cover what the basic geometry measurements of a bike mean in-depth in another article. But in the meantime, if you found this useful, feel free to give us alike.

If you want more articles like this and to stay posted on all things reader you can visit OutdoorXsports.

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