Would Shorter Crank Arms Help Me Bike?

by | Last updated on January 24, 2024

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That means

shorter cranks give riders better acceleration

, which can make a difference when passing other riders or trying to clean an obstacle. Shorter cranks can also have health benefits for riders.

What does a shorter crank arm do?

A shorter crank alone will not increase your power output, but it can be used to

reduce restriction through the top of the pedal stroke by opening up an impinged hip angle and/or reducing knee flexion

. Going back to our definition, if we reduce restriction than power output can increase.

Should I shorten my crank length?

Is 165mm crank too short?

There is very little downside to shorter cranks, so

if you find yourself on the cusp between two sizes, always go for the shorter length

. 162.5 and 167.5mm are quite rare, so in both cases you may find your best option is to go with 165mm. * Assuming average leg length proportions for your height.

Will shorter cranks help my knees?

Pain is relieved.

Just by installing shorter crank arms, without any other adjustment, the knee at maximum flexion is lowered by 7.5 mm. That difference provides approximately 3° to 4° of relief

.

What length cranks do pros use?

The most common lengths are

170, 172.5 and 175 mm

, but it is possible to find cranks between 165 and 180 mm in the market.

Are longer crank arms better for climbing?


If you’re having problems with your lowest gear, stick with longer cranks

. They reduce force at the same gear ratio. Shorter cranks allow you to use a lower gear at the same foot speed… but if you don’t have a lower gear, you’re stuck. Right.

Are shorter cranks better for climbing?

“I try to put anyone on the longest crank possible within their range of movement to use the muscle mass they have,” he said. “This is especially important for strength-oriented riders.

For those riders with greater cardiovascular strength, a shorter crank works better because they tend to ride at higher cadences

.”

Does crank length really matter?

As far as maximal sprint power and metabolic cost are concerned, crank length can be anywhere from 145mm to 195mm and

it really doesn’t matter

. ‘A longer crank is basically a lower gear ratio. It might allow you to climb better, but its effect is tiny compared to shifting up two sprockets on your cassette.

Does bike crank length matter?


Crank length can be used as a tool to improve fit related issues impacting comfort, power, and aerodynamics

. Moving to a shorter crank can improve: Comfort: A shorter crank length reduces range of motion at the knee (extension and flexion), hips, and low back.

Does crank length affect power?

Folk lore suggests that

crank length has a huge effect on the power that you can generate

, or the cadence that you’re able to ride at. Namely, the general view is that shorter cranks allow you to spin and accelerate quicker but at the cost of high torque or power.

Should I go to 165mm cranks?


For people between 1.65 m & 1.72 m (5’5′′ & 5’8′′), 165 mm cranks are generally recommended

(such people’s bikes probably came with 170 mm cranks). For people between 1.72 m & 1.78 m (5’8′′ & 5’10”), 170 mm cranks are generally recommended (such people’s bikes probably came with 172.5 mm cranks).

Are shorter cranks better MTB?


Shorter cranks put less torque and load on joints and muscles, thus reducing the chances of knee, hip, back and other pain while riding your mountain bike

.

Why do Ebikes have shorter cranks?

eMTB is a discipline that’s seen shorter cranks introduced from the outset. The primary reason for this is the

increased clearance a shorter crank provides

. On an eBike this is both necessary for the technical terrain you can climb, as well as the increased speed you’ll be climbing at.

Does crank length affect saddle height?

The main points to consider: handlebar height and saddle setback.

Handlebar height is always set relative to saddle height

. That 5-foot-2 woman moving to 165mm cranks will raise her seat about 7.5mm to compensate for the shorter cranks.

Which is better 170mm or 175mm crank arm?

The Basics. XC – Possible sizing needed depending on ride lengths, but

175’s are what is recommended for more leverage

. Trail/Enduro – 170mm crank arm length is the most commonly used size and is recommended to keep a good leverage ratio and have a bit more ground clearance due to having more travel.

Will I be able to ride a bike after knee replacement?

You can expect to be able to ride a stationary bicycle

one to two weeks after your total knee replacement operation

. Remember that everyone is different, and your specific condition may require that you wait a bit longer before starting a bicycling program for your TKR rehabilitation.

What crank length does Chris Froome use?

Recent Tour winner Chris Froome uses

175mm

as he stormed to victory. However, we need to remember we’re not World Tour riders and shouldn’t use a long crank just to be like Froome.

Do taller cyclists have an advantage?

The relatively low body mass for better climbing, high surface area for better cooling, low frontal profile for lesser drag, yet long legs for generating power, all play to the cyclist’s advantage. The very tallest riders in cycling must abide by such proportions to the extreme.

Are 175mm cranks too long?


If you are 6’2′′ then 175 is probably a small-med for your size

. If you were 5’2′′ then it would be a long crank. For what it’s worth, I’m 6′ 2′′ and run 175mm cranks on all my bikes.

What is a good length for a bike ride?

Well, despite the seemingly open-ended nature of this question, I’ve conducted extensive research, and I’m pleased to report that it does, in fact, have a quantifiable answer. The ideal length for a bike ride is

20 miles

.

How do I choose crank length?

What crank length is recommended for your inside leg measurement?

Normally fit adult riders should use cranks which measure

about 20% of their effective leg length, rounded to the nearest 5mm

, whereas growing children can safely increase this figure to 22%. This length goes all the way to your hip joint and cannot be measured directly.

What size crankset single speed?

We generally recommend

165 mm length

cranks for road fixed-gear use. This shorter length makes it easier to spin faster cadences, and also reduces the risk of striking a pedal while cornering (with a fixed gear, where you have to pedal through the corners, this can be an issue.)

Amira Khan
Author
Amira Khan
Amira Khan is a philosopher and scholar of religion with a Ph.D. in philosophy and theology. Amira's expertise includes the history of philosophy and religion, ethics, and the philosophy of science. She is passionate about helping readers navigate complex philosophical and religious concepts in a clear and accessible way.