FAQ: How To Tell Bike Pedal Size?

Do bike pedals have sizes?

When it comes to pedal sizes, there are two sizes: ½” and 9/16”. ½” pedals are only used on very basic bikes with a one piece crank. A one piece crank is just that, it’s one piece of steel that is bent/forged to run from one pedal, through the frame, to the other pedal.

Are bike pedals universal?

Yes, pedals are universal for mountain bikes. But this depends on the type of crankset you have. A 1-piece crankset uses 1/2′ inch in diameter pedals. Two piece and three piece cranksets use a 9/16′ inch in diameter pedals.

How are flat pedals measured?

The overall size of each of our pedal designs slightly changes where your feet should rest on them. The way it’s measured is from the middle of the pedal to the crank arm. Once you’ve found the right-sized flat pedal for you, you might be interested in exploring your different pin options.

What size is the nut on a bicycle pedal?

Pedal wrench flats are typically 15mm in size. 9/16″ (~14.3mm) is somewhat common on older pedals. 17mm and other sizes have been used, but you aren’t very likely to encounter them.

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Can MTB pedals be too big?

A bigger pedal gives a mountain biker added confidence when jumping and also provides more foot placement adjustment as compared to clipless pedals. A small MTB pedal for a bigger shoe size guy or gal can be uncomfortable.

Why does my bike squeak when I pedal?

That creaky squeaking you hear as you pedal “could mean that [your bike] has a dry chain or bearings,” Yozell says. Cleaning and lubing your chain is usually a good place to start with any weird noise, but if it doesn’t solve the squeak, you may need to maintain or replace some bearings (see below).

Are bike pedals one size fits all?

The 9/16” is the most common pedal thread size on the market today and is the size that most manufacturers use for their pedals. Almost all modern adult bikes have the 9/16” pedal with 20 threads per inch (tpi).

Are all pedals 15mm?

The flats on almost all modern pedals take a 15mm spanner, though many pedal spanners also have a 9/16-inch jaw for older pedals.

Are all bike pedal threads the same size?

Thread Sizes 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 1.25 mm thread, but these are quite rare. French-threaded pedals are commonly labeled “D” and G” (French for “droite” and “gauche” (right and left).

How wide should my pedals be?

Pedal Width (not shown in Figure 1) is the distance from the center of the pedal to the outside of the closest crankarm. Standard road pedal width is 53mm. Stance Width (or pedal stance width) is the distance between the center of one pedal to the center of the other pedal.

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Where should foot be on bike?

When placing your foot on a flat pedal, the ball of your foot should be just in front of the pedal spindle. Basically the spindle of the pedal should support the back section of the meaty part of the ball of your foot. This placement allows the rider to stay balanced when standing on the pedals.

Do I really need a pedal wrench?

All modern pedals will screw into the crank arm using either one of two tools. Most pedals (like our reliable Thump flat pedals) require a pedal wrench, which is a long, thin tool specifically designed to fit the external spindle flats between the pedal and the crank leg (fig. 3).

Do all pedals fit all cranks?

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 1.25 mm thread, but these are quite rare. French-threaded pedals are commonly labeled “D” and G” (French for “droite” and”gauche” (right and left).

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