The 11 Best Square Crank Arms (2022 reviews)

Oumers has been making great arms for years, thanks to a combination of clever design and high-end materials. The Oumers Square Crank Arm is pretty good, it fits perfectly and has a perfect design. Ensures smooth operation and long life. Moreover, the arm is effective, it can pass for decent quality and has a universal design.

The arm is used to remove square type crank arms, not fit octalink crankset. Most importantly, the oumers square crank arm is black and has a great design.

Most customers find that the arm does work, but there are times where different scwinn bikes have an older crank mechanism or newer crank mechanism. Further, they also found that the arm is easy to use because it's modular.

Customers say that getting a greases for bike crank, along with arm is useful.

Top Customer Quotes:

It is easy to operate, it is inexpensive and has a new design.
This is a 1/2 inch drive socket, a breaker bar worked great.
This is great for pulling crank arms, strong and sturdy enough.
This comes with it is fairly cheap and not great.

Best For Mountain Bike: Ganopper Square Crank Arm

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Not everyone likes to purchase an arm for their daily usage, but the Ganopper Square Crank Arm would be an anomoly. Also, the ganopper square crank arm is a low price and has a perfect design. Alu 6061 square bike crank, design of stiffener, durable, light weight, only 499g/set.7075 alloy aluminum single speed 32 tooth chainring. And, it is easy to modify a single speed crankset, dual crankset, or triple crank set. Above all, the ganopper square crank arm is available in 4 vibrant colors: red, green, blue etc., so, we bet you will like one of these.

Most customers opine that the arm comes with the necessary center bolts to properly seat them. Moreover, they also found that the arm is easy to install and it works great. To sum up, for most customers, it was most suitable.

Why We Like This:

It has a great crank and it is black.
This comes with a chain ring and has a great design.
Bcd: 104mm(outer circle), 64mm(inner circle).color: matte black. Full crank set weight:1.34 lbs.

Best For Road Bike: Winomo Square Crank Arm

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The Winomo Square Crank Arm's material feels more premium than its price would suggest. The winomo square crank arm is constructed with premium aluminum alloy, The crank is durable and strong. Make sure this fits by entering your model number. In addition, it is good for product size, is great for value for money and it is black.

Above all, the winomo square crank arm is worth the money and it has a fixed gear bike.

Almost all buyers found that the arms are easy to install and are of good quality. Therefore, customers were very happy to recommend it to friends and would-be buyers.

Customers discovered that getting a mountain bike crank tool, along with arm is useful.

Why We Like This:

Suitable for road bike, mountain bike, folding bike, fixed gear bicycle, etc.
This is cool, fits perfectly and it is best for good fit.
The center distance between two holes is 170mm.
A Great bike accessory that can provide you help in most situations.

RELATED: Best Crank Tandem Freewheels

Best For Great Price: Forest Byke Company Square Crank Arm

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We would, of course, be remiss if we didn't mention Forest Byke Company Square Crank Arm for daily usage. The Forest byke company square crank arm comes with a hex wrench, It looks nice and it fits perfectly. If your crank arm is ovalized and keeps falling off. The square taper is ovalized from wear, it will back out the bolt.

Above all, the forest byke company square crank arm comes with keep the crank arm attached for a while but will eventually fall off.

Almost all buyers opine that the arm fits shimano cranks and it is good for square taper crankset. And, they strongly agree that the arm is perfectly and smoothly in a shimano un55 bb and sunrace road bike crankset. And, they also found that the bottom bracket spindle uses a bolt and not a nut. Overall, many buyers have used the arm for more than a few months without any complaints, and it shows no sign of giving up.

Customers discovered that getting a mountain bike crank tool, with this arm made their life much easier.

Why We Like This:

8Mm hex head crank fixing bolt and cap pair.
It is really nice and it feels durable.
They fit perfectly and they look great.
is an 8mm hex head crank fixing bolt and cap pair.

Best For The Price: Bucklos Square Crank Arm

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The Bucklos square crank arm's material feels more premium than its price would suggest. And, the Bucklos square crank arm is built for single speed bike, It is good for nice color and has an excellent design. And, this crank will fit most standard square taper bottom bracket. In addition, it is cool, it looks good and has a new design. Most importantly, the Bucklos square crank arm is available in 4 colors: red oval, black oval, red round etc., so, it's likely one of your favorites is in the mix.

Almost all buyers opine that the arm can be used as a budget upgrade to an older bicycle. In addition, they strongly agree that the arm can adjust the chainring well.

Why We Like This:

This looks good too, it looks great and has a great design.
This is good for seamless transition and it looks nice.
This is great for the price and it is easy to assemble.
It performs well, is built with great quality and it is black.

Best With Fast Shipping: Fmfxtr Square Crank Arm

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Next on the list, we've got yet another arm that manages to win our hearts. It's the Fmfxtr Square Crank Arm and it's widely considered as one of the most convenient arms you can buy. The fmfxtr squarecrank arm looks great and it is best for great appearance. 104/64mm.crank fitted single/double/triple chainring, crank arm length 170mm, crank related holes 74m, fitted 8-12s chain single/double/triple speed chainring. Furthermore, it is very light and blue.

Lastly, the fmfxtr square crank arm is made of aluminum alloy, light weight, stylish, flashy styling, high axial strength and compatibility.

Most buyers agree that the arm fits like it should well. In addition, a few say that the arm is compatible with a 6 speed chain.

Few customers bought mountain bike crank tool, along with the arm.

Top Customer Quotes:

This is meant to be used with a square taper bottom bracket.
【Package 】1 x square crank； 1 x 30t chainring ；4 x chainring bolts(set).
【Chainring】single speed narrow wide 104mmbcd,30t,round,black/red/blue/green/purple/gold,thickness 4mm (1.9mm narrow, 3.7mm wide).
This is the setup mongooses should have on all their fat bikes.

RELATED: Best Chainring Crank Singles

Best For Exact Replacement: Truvativ Square Crank Arm

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The Truvativ Square Crank Arm is capable of outshining several other arms featured in this list in overall features for the price point. The truvativ square crankarm is made of high quality material. This is a useful spare part if your original crank loosens off and the bike is still ridden. Moreover, it works well. is perfect for exact replacement and it is straight - forward.

The arm features a square taper bottom bracket. Moreover, it is blue and black. Finally, the truvativ square crank arm has blue loctite and it is good for fast delivery.

One customer says - "I wish I had known that the arm came with the bolt. ". Almost all buyers found that the arm comes with a new crank bolt.

Why We Like This:

This is made for standard size and it is great for the bottom bracket interface.
Genuine and original truvativ replacement part.
Good investment for the long term.

Best For Good Value: Acekit Square Crank Arm

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The Acekit Square Crank Arm's superior materials make sure that it ages well with use. Further, the arm is made of hardened carbon steel with high hardness, durable and compact. Make sure this fits by entering your model number. Above all, the acekit square crank arm is made for good value, works well, it is inexpensive and has a universal design.

Almost all customers quickly discovered that the arm had done a fine job. Further, they say that the arm has a little bit of wiggle on the threads but it worked perfectly.

Customers found that buying a greases for bike crank, along with arm is useful.

Why We Like This:

【Durable and compact】made of hardened carbon steel with high hardness, durable and compact.
【Size】22x1 mm threading in the common cranks.
New and hot releases.

Best For High Quality: Sr Suntour Square Crank Arm

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Not everyone likes to purchase arms for their daily purpose, but the Sr Suntour Square Crank Arm would be an anomoly. Make sure this fits by entering your model number. Moreover, the arm is great with fast shipping and it is black. In short, with a 4.3 rating and more than 312 buyers, the Sr suntour squarecrank arm stands as the best choice.

One customer says - "Fixed a ten - year issue with a defective arm from the factory. ". A few say that this new crank arm fits well and has stayed tight for weeks now.

Customers say that buying a mountain bike crank tool, along with arm is useful.

Why We Like This:

Sr suntour xcc left hand crank arm replacement square taper 175mm: black.
Good investment for the long term.

Best With Many Bike Models: Ejoyous Square Crank Arm

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We would, of course, be remiss if we didn't mention the enjoyable square crank arm for daily usage. The enjoyable square crank arm is suitable for road bike, mountain bike, folding bike, fixed gear bicycle, etc. Please check if the orientation of your right crankarm is square or diamond. The bike crank arm is durable and strong, has fine polishing, smooth edges. Lastly, the enjoyable square crank arm is compatible with many bike models.

Why We Like This:

【Great accessory】: a nice replacement for bike repair, compatible with many bike models.
Good brand reputation.

Best For Perfect Fit: Bnineteenteam Square Crank Arm

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The Bnineteenteam Square Crank Arm's material feels more premium than its price would suggest. The bnineteenteam square crank arm is compatible with many bike models. would get a 170mm crank arm length without any overlap of the crank arm and chain ring bolt. In addition, it is a perfect fit for a bike, easy to install.

Above all, the bnineteenteam square crank arm is made of premium aluminium alloy, lightweight, high strength and deformation resistance, durable for long - time use.

Overall, most buyers call the arm functionally comfort, and no one questions it.

Why We Like This:

Application:a nice replacement for bike repair, compatible with many bike models.
The Manufacturer says: our products have certain quality assurance.
This is made with great paint and it has material quality.