What size spanner for pedals?

Most people don’t know that there are different types and sizes of spanner for different purposes. The size of the spanner you need for your pedals will depend on the size of the screws or bolts that you’re trying to loosen or tighten. In general, you’ll need a bigger spanner for bigger screws and bolts.

There is no definitive answer to this question as it depends on the size and type of bike pedals you have. However, a good rule of thumb is to use a spanner that is slightly smaller than the pedal axle.

What is the standard pedal wrench size?

A pedal wrench is a specialized wrench designed for removing and installing bicycle pedals. The most common size is 15mm, but older pedals may be 9/16″ (~143mm). Other sizes have been used, but are less common. A “cone wrench” is thinner and shorter than a pedal wrench, and is not suitable for use on pedals.

Most pedals require an Allen wrench to tighten or loosen them. The size of the wrench needed varies depending on the brand of pedal, but is typically either a 6mm or 8mm. Shimano pedals, for example, require an 8mm wrench.

What size is a bike pedal nut

The most common bike pedal thread size on the market is 9/16″ – this is what most manufacturers produce. Pretty much all adult bikes that are made in the last 15 years will have 9/16″ with 20 threads per inch – TPI.

The size of the flats on modern pedals usually take a 15mm spanner. However, many pedal spanners also have a 9/16-inch jaw which is compatible with older pedals. This is convenient if you have a mix of old and new pedals.

Are my pedals 9/16 or 1 2?

If you’re not sure whether your bike has 1/2 inch or 9/16 inch pedal threads, the easiest way to tell is by looking at the number of parts that make up the crank. If there are 2 or 3 parts, the bike needs 9/16 inch pedal threads; if it has one single crank, it will need 1/2 inch pedal threads.

If you have the right pedals, you might be able to use a regular combination wrench instead of an Allen wrench. Most pedals are 15mm. Some pedals are installed and removed with an Allen wrench, so you’ll need one with a long handle.

Is 9 16 the same as 15mm?

There are a few different ways to measure things in the U.S., but the two most common ways to measure length are in inches or in centimeters.
Sometimes you might need to convert from one system to the other, like when you’re trying to figure out how big something is in inches when all you have is the measurement in centimeters.
In that case, it’s helpful to know that 1 inch is equal to 2.54 centimeters.
So, if you need to know how many inches are in 14 millimeters, you can multiply 14 by 2.54 to get the answer: almost 9/16 inch.
If you need to know how many millimeters are in 15 inches, you can divide 15 by 2.54 to get the answer: almost 19/32 inch.

There are two main types of metric thread — coarse and fine. The coarse thread is designated by the letter M, while the fine thread is designated by the letter MF. (For American Unified threads, the letters are UNC and UNF, respectively.)

The coarse thread is the more common of the two and is used for most general purposes. It is also easier to thread than the fine thread and is less likely to cross-thread (strip the threads).

The main disadvantage of the coarse thread is that it is not as strong as the fine thread — in other words, it is more likely to strip (break the threads).

The spanner size that you choose should be based on the thread type of the nut. For coarse threads, you should use a larger spanner, and for fine threads, you should use a smaller spanner.

How do I know what size nut spanner I need

A spanner is a type of wrench that is used to turn bolts and nuts. The size of the spanner is determined by the width across the flats, which is typically imprinted in millimeter (mm) values. Older British and current US spanners may also have inch sizes that are imprinted in intermediate sizes in fractions.

If you don’t have a pedal wrench, you can use a standard 15 mm open-end wrench.

What size are pedal bolts?

Most pedals have 9/16″ x 20 tpi threads. Pedals for one-piece cranks are 1/2″ x 20 tpi. Older French bicycles used a 14 mm x 125 mm thread, but these are quite rare.

To remove the pedal from the pedal arm, you will need an Allen Wrench or a Smart Wrench. If you are using an Allen Wrench, insert the head of the wrench into the socket located on the pedal arm. If you are using a Smart Wrench, place the jaws on the nut located between the pedal and pedal arm.

How do you unscrew pedals

The rear of the bike is where the pedals and chain are located. To go faster, you need to push down on the pedals with your feet.

If you’re looking to replace your bike pedals, you’ll need a 15mm tool to loosen the originals so you can remove them. When choosing new pedals, make sure to get a pedal with a 9/16″ or 15mm size.

What are common bicycle wrench sizes?

The sizes most commonly used today for BMX and internally geared hubs are 13, 14, 15, 16 and 17mm. Most sizes 19mm and above are used for specialty applications.

9/16” is the most common pedal thread size and it is what most manufacturers use for their pedals. The pedals have20 threads per inch (tpi). 9/16” x 20 tpi is the standard size for adult bikes.


A spanner for pedals is typically size 8-10mm.

A spanner is an important tool for many repairs, but especially for fixing bicycles. The size of the spanner will depend on the type of bicycle and the type of pedals. Older bicycles typically have larger pedals, so a bigger spanner may be needed. Newer bicycles often have smaller pedals, so a smaller spanner may be all that is needed. Ultimately, it is important to have the right size spanner for the job, so that the pedals can be properly secured.

Joe owns a small tool workshop in Utah. He inherited passion for construction from his father and aims to help others writing educational articles in his spare time. Every man should know how to fix basic things around the house!

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