Pedal Axle Thread Sizes

Ever found yourself asking what’s the difference between a 1/2″ and 9/16″ thread on the pedal axle? Here’s a simple answer…

• As a general rule of thumb, pedals with a one-piece crankset (eg kids bikes and BMX’s) have a 1/2″ axle thread on the pedals.
• All other three-piece cranks (eg MTB’s and road bikes) have a 9/16″ thread.
• For example, if you are looking for a new set of pedals for your mountain bike, in most circumstances you would select the 9/16″ option.

Hope this helps someone!