Your question: Are bicycles metric or SAE?

The bike industry is metric. For home use, a full set of metric allen wrenches is great. For bringing with you, there are a lot of multi-tools that will fit in your pocket and provide all the help you need on the road.

Are bicycles standard or metric?

Most bicycle references in the magazines are metric, but even so, a stem will be 150-millimeters and the fork steerers it is supposed to fit are stated in fractional and decimal inches—like 1.5″ and 1 1/8 inches.

Are bicycle tools metric?

On one bicycle, you will see both the metric and SAE system. Most threading is metric, but not all. Axles on most bikes will use a 9mm threading for the front axle, and 10mm for the rear axle. … Components will be fitted with metric fasteners using metric wrench sizing, but the chain is a one-half inch pitch.

What size Allen keys do you need for a bike?

Many brands now offer two or three different sizes of three-way, but the standard 4, 5 and 6mm three-way remains the gold standard. Much of a bike can be built with this one single tool.

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Are mountain bikes metric or standard?

Most bikes, whether road or mountain, are now measured in metric units, but you may find some manufacturers that still size mountain bikes in inches. Some brands, such as Moots, even mix the two!

Do bicycles use metric or imperial?

The US, where many of the bike engineering is done, plus few other small countries keep using Imperial, while the rest of the world, UK included has switched to Metric.

Are Cannondale bikes metric or standard?

And Cannondale use industry standard bolt sizes, nothing special in that department.

Are Mongoose bikes metric or standard?

The Mongoose 24 in. Metric Bicycle features an aluminum dual suspension frame, Shimano shift system, and an Alloy forged 3-piece Crank set, making it an ideal bicycle for anyone who wants to ride on cross-country terrain.

Why do allen keys exist?

Hex keys, commonly known as Allen keys/wrenches in the UK and various other countries, are a very simple hand tool of the general spanner and socket family, used for tightening and loosening hexagonal bolts and other compatible fasteners.

Why are Allen wrenches black?

EPAuto Allen Key Set

These tools are made of chrome-vanadium steel alloy and feature a black oxide finish, which ensures that your tools last longer and stay protected against corrosion.

Are bicycle Allen wrenches metric?

Tool. The bike industry is metric. For home use, a full set of metric allen wrenches is great. For bringing with you, there are a lot of multi-tools that will fit in your pocket and provide all the help you need on the road.

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What is the difference between an Allen wrench and a hex key?

The short answer is “there is no difference”. Really, these two names can be used interchangeably.

What is Hex bike size?

Hexagonal Allen Key comes in 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm. The common sizes used are 4mm, 5mm and 8mm. Seatpost, Stem, Steerer Tube varies between 4mm or 5mm depending on brands. As 8mm are used to tighten the most pedals onto the crank arm.

What is the difference between metric and imperial Allen keys?

Thus, be careful when substituting sizes with precision hardware. Lastly, do remember that not every Allen wrench size has a perfect counterpart. That’s it when it comes to comparing metric & standard Allen wrench sizes.

MM Substitutes for SAE.

Metric Hex Key Imperial Hex Size
3.5 mm 9/64
4 mm 5/32
5.5 mm 7/32
6 mm 1/4