How to choose a mountain bike’s stem length

The average stem length for a mountain bike is between 50 and 80mm. Shorter stems allow for quicker handling and are preferred by many downhill riders, whereas cross-country riders enjoy longer stems for their superior climbing performance. The handlebars should hide the front hub if the stem length is correct. A longer stem shifts your body weight towards the front of the bike and puts you in a better pedaling position. Is 50mm stem too long? If you like descending and hitting jumps, and you are running a stem longer than 50mm, I would recommend you try something under 50mm. A lot of riders think 50mm stem is too long, and would prefer a 35 or 40mm stem. The ideal is 35-50mm and 60-70mm, a compromise for riders with frames that are too short. How do I know if my stem is too short? The bars will be too far forward if the stem is too long. The hub will be aligned in front of the bars if the stem is too short. Get the smaller one if it is shorter. The reach to the handlebars will be longer on a bigger bike. If you have proportionally longer arms, you are more comfortable on a bigger frame. The standard is 25.4mm and the oversize is 31.8mm, with the latter being the most common due to its strength and stiffness. To keep your weight centered, you need to run a shorter stem. The general rule of thumb is to maintain a 2:1 ratio of handlebar width to stem length: for every 20mm increase in handlebar length you should reduce stem length by 10mm. A shorter stem means a more responsive bike as well as less input from the rider needed to initiate turns. When seated, a longer stem helps lengthen the rider reach, putting the upper body in a lower more aerodynamic position. Unless you are riding a technical course, 70mm is doable. I have to use 70 and 80 cm stems. If you don't have callipers, you can use a simple measure tape. Wrap the bar around the point where you want to attach the Oi and then divide by pi. To get your diameter. 31.8mm is the 99.9mm. If you don't have tape, you can use a piece of paper. It is possible to find cranks between 165 and 180mm in the market.

How long should I keep my mountain bike stem?

The average stem length for mountain bikes is between 50 and 80mm. Cross-country riders enjoy longer stems for their superior climbing performance, whereas downhill riders prefer shorter stems for quicker handling.

How do I pick the right stem length?

One good rule of thumb for choosing the correct length stem is to sit on the bike with your hands on the hood and look at the front hub. The front hub should be completely hidden if the stem length is correct.

Is a shorter stem better?

A shorter stem gives the bike a more responsive feel. On those steep climbs, a longer stem will shift your body weight towards the front of the bike and give you a better pedaling position.

What does a shorter stem do?

Shorter stems orientate a rider's weight directly over the front axle, which has a range of benefits by mass-pressing the wheel when descending. In dusty or muddy terrain, the result is truer steering response and better tire grip.

Is 50mm stem too long?

It depends. If you like descending and hitting jumps, and you are running a stem longer than 50mm, I would recommend you try something under 50mm. A lot of riders think 50mm stem is too long, and would have changed to a 35 or 40mm stem a long time ago.

Is a bike stem too short?

From the Mondraker experiment, I would say that 10mm is too short. The ideal is 35-50mm and 60-70mm, a compromise for riders with frames that are too short. The frame length is important for better bike handling.

How do I know if my stem is long?

The bars line up in relation to the front hub. The bars will be too far forward if the stem is too long. The hub will be in front of the bars if the stem is too short.

Is it better to get a bigger frame?

Go for a bigger frame if your arm span is longer than your height. Get the smaller one if it is shorter. The reach to the handlebars will be longer on a bigger bike. You are more comfortable on a bigger frame if you have proportionally longer arms.

Is all MTB stems the same?

1 1/8” is the most common size of steerer tube on both road and mountain bikes. The standard is usually 25.4mm or 31.8mm OS in diameter, with the latter being the most common due to its strength and rigidity.

How long is the stem for wide bars?

More of your weight will be shifted forward by a wider bar. To keep your weight centered, you need to run a shorter stem. For every 20mm increase in handlebar length, you should reduce your stem length by 10mm.

What is the shortest MTB stem?

For safety measures, the shortest you can get is either 30.5mm or 31mm, my money is in the 31mm.

Is a shorter stem more comfortable?

Bike handling and aerodynamics are influenced by stem length, orientation and height. A shorter stem means a more responsive bike as well as less input from the rider needed to initiate turns. When seated, a longer stem shortens the rider reach and puts the upper body in a lower position.

How long is a stem?

A long stem is 100-120mm, a very long stem is 130mm or more, and anything less than 90mm can be considered a short stem.

How do you measure the length of the stem?

From the middle of the headset stem cap bolt to the middle of the handlebar is how long the stem is.

Is the road bike's stem too short?

A short stem will make your bike feel twitchier. Unless you are riding a technical course, 70mm is doable. I have to use 70 and 80 cm stems. The bike can handle a short stem, but it needs practice.

How do you measure a mountain bike stem?

You can use a simple measure tape if you don't have callipers. Wrap the bar around the point where you want to attach the Oi and then divide by pi. To get your diameter. 31.8mm is the 99.9mm. If you don't have tape, use a piece of paper.

What do you mean by an ahead stem on a bike?

The steerer tube of the bicycle fork is connected by the stem to the handlebars.

What is the length of the crank arm?

The centre of the pedal axis is represented by the crank length. It is possible to find cranks between 165 and 180mm in the market.