Pedals

BMX pedals are the platforms that thread into the crank arms. They give your feet a grippy surface to push, jump and balance on. Most BMX riders use flat platform pedals with pins and no straps.

What it does

Pedals turn leg power into rotation of the cranks. They also hold your feet in place when you hop, grind or land. A good pedal has a wide, grippy platform and a spindle that spins smoothly.

Because BMX riders step off and on constantly, and land on their pedals, they are one of the parts that take the most abuse.

Types and standards

Plastic vs alloy

Type	Pros	Cons
Plastic (nylon or polycarbonate)	Light and affordable. Softer on shins. Easy to replace. Often has fitted pins.	Can crack or flex under extreme load. Pins may wear.
Alloy (aluminium)	Strong and stiff. Takes hard hits.	Heavier. Edges can cut skin. Usually costs more.

Why plastic took over freestyle

Plastic pedals became the norm on many freestyle bikes for practical reasons. They are cheap to replace, which suits riders who destroy pedals. They are lighter. They are much less painful when a foot slips and the pedal swings into a shin. Modern composite plastics are also stronger than older ones, so they last well under normal riding.

Plenty of riders still choose alloy for the stiffness and feel, so it is a matter of preference.

Thread size

Thread	Used on
9/16 inch	3-piece and 2-piece cranks. Most adult and freestyle bikes.
1/2 inch	One-piece cranks. Kids bikes and cheap bikes.

The two sizes are not compatible. Forcing the wrong thread can strip the crank arm.

Pins

Pins give extra grip and are usually screwed into the platform. Alloy pedals typically use replaceable steel pins. Many plastic pedals have pins fitted, and some have moulded grip. Longer pins grip better but bite when you slip. Shorter pins are more forgiving. Bent or lost pins can be replaced if the pedal supports it.

Sealed vs unsealed

Bearing	Notes
Sealed	The bearings have seals that keep dirt and water out. They last longer with less care and spin smoothly.
Unsealed	The bearings or bushings are open. They are cheaper and easy to service, but need more frequent cleaning and greasing.

Sizing and compatibility

1. Thread: 9/16 inch or 1/2 inch. Match your cranks.
2. Left and right: the left pedal has a reverse thread. Do not swap sides.
3. Platform size: wider platforms give more control. Bigger feet and shoes want bigger platforms.
4. Spindle length: a longer spindle pushes the pedal further from the crank. Make sure it does not hit the frame or chainstay.
5. Shoe fit: flat soled shoes grip best on pins.

How to choose

1. Decide on plastic or alloy. If you are not sure, start with plastic.
2. Match the thread to your cranks.
3. Pick a platform size that suits your shoe size.
4. Check pin style. Shorter pins hurt less if you are learning.
5. Look for sealed bearings if you ride in wet or dusty places.

Pedals range from low to moderate prices. Alloy pedals with replaceable pins and sealed bearings cost more. Beginners do not need the most expensive pair.

Maintenance

• Grease the thread before fitting. Do not overtighten, because it can strip the crank.
• Tighten the pedals after the first few rides.
• Check pins and replace any that are bent or missing.
• Spin the pedal. If it is rough or loose, the bearings need attention.
• Wipe dirt away and re-grease unsealed pedals regularly.
• See BMX maintenance basics and how to set up a new BMX.

Related parts

Cranks, bottom bracket, sprocket and pegs.