How Do You Take Off A Bike Pedal

Learning how to take off a bike pedal is a fundamental skill for any cyclist. Whether you're upgrading to a new set, packing your bike for travel, or performing deep cleaning and maintenance, this guide will walk you through the process safely and effectively. The key challenge often lies in stuck pedals and remembering the unique reverse threading on the left-side pedal. We provide clear, step-by-step instructions to prevent frustration and damaged components, ensuring you can tackle the job with confidence.

Fast Answer

Right (Drive-Side) Pedal: Turns anti-clockwise to loosen (standard thread).
Left (Non-Drive-Side) Pedal: Turns clockwise to loosen (reverse thread).
Required Tool: Typically a 15mm pedal wrench or a 6mm/8mm Allen key.

5-15 Minutes Time needed

Easy Difficulty

Knuckle scrapes Watch out for

Before You Start

Preparation is key to a smooth and safe pedal removal process. Gathering the right tools and understanding the fundamental safety checks will save you time and protect both you and your bike from damage.

What You Need

A Pedal Wrench or Allen Key: Check your pedals to see what they require. Most use a long, thin 15mm pedal wrench that fits onto the flats of the axle between the pedal and the crank arm. Many modern pedals, especially clipless models, use a 6mm or 8mm Allen key that fits into the end of the pedal axle from the inside of the crank arm. A dedicated pedal wrench offers far better leverage and fit than a standard spanner.
Penetrating Oil: If your pedals haven't been removed in a long time, they may be seized. A spray like WD-40 or a bike-specific penetrating fluid can be a huge help.
Rags or Paper Towels: For cleaning old grease, dirt, and excess oil from the crank arm threads.
Protective Gloves (Recommended): A good pair of workshop gloves will improve your grip and save your knuckles from the sharp teeth of the chainrings.
Bike Grease or Anti-Seize Compound: Essential if you plan on installing new pedals. Applying this to the threads prevents them from seizing in the future.

Safety, Timing, or Context Checks

Identify Your Pedal Type: Before you begin, look closely at your pedals. Do they have flat sections for a wrench, a hexagonal socket at the end of the axle for an Allen key, or both? Using the wrong tool is the fastest way to damage the pedal.
Work on a Stable Surface: Perform this task with the bike on the ground, leaning against a wall for support. Using a workstand can make the bike unstable when you apply the high force needed to loosen a stubborn pedal.
Understand Pedal Threading: This is the most critical piece of information. The right-side (drive-side, with the gears) pedal has a standard thread. The left-side (non-drive-side) pedal has a reverse thread. This design prevents the left pedal from unscrewing itself as you ride.

Check first: The left-side pedal loosens clockwise. This is counter-intuitive and the opposite of the standard 'righty-tighty, lefty-loosey' rule. Forcing it the wrong way will only tighten it further and potentially damage the crank threads.

Step-by-Step Instructions

Follow these steps methodically. We'll start with the drive-side pedal, which uses a standard thread, before moving to the trickier reverse-threaded left side.

Position the Bike and Drivetrain

First, ensure your bike is stable. Place it on a level floor, leaning a handlebar or the saddle against a solid wall. Next, shift the front derailleur so the chain is on the largest chainring. This simple action serves as a protective barrier. If your hand slips while applying force, the chain will guard your knuckles from the sharp, greasy teeth of the chainring.

Loosen the Right-Side (Drive-Side) Pedal

Start on the side with the chainrings. Rotate the crank arm so it points forward, roughly parallel to the ground in the 3 o'clock position. This setup allows you to apply downward force, using your body weight for maximum efficiency and control.

If using a pedal wrench, fit it securely onto the pedal axle flats. Make sure the tool is fully seated to prevent it from slipping and rounding the nut. Position the wrench so the handle points towards the rear of the bike. Now, push down firmly on the wrench handle. The loosening direction is anti-clockwise. You may hear a crack or pop as the thread breaks free—this is normal for a tight pedal.

If using an Allen key, insert it fully into the socket on the inside of the crank arm and push downwards. The principle is the same.

Tip: If the pedal is very tight, try positioning the wrench so the handle points straight up, then push it towards the rear of the bike. This "backwards" motion is an easy way to remember the loosening direction for both sides.

Loosen the Left-Side (Non-Drive-Side) Pedal

Now, move to the other side of the bike. This is where you must remember the reverse threading. Rotate the left crank arm so it also points forward, parallel to the ground in the 9 o'clock position. This again sets you up to apply downward force effectively.

Fit your wrench or Allen key securely. Just like on the right side, position the wrench so you can push downwards towards the rear of the bike. Because you are on the left side, this downward push will turn the axle clockwise. This is the correct direction to loosen the left pedal. Apply steady and firm pressure until you feel it break free.

Why the reverse thread? This clever design counters a mechanical force called 'precession'. As the bearings inside the pedal rotate, they create a tiny rotational force on the axle. On the left side, this force would slowly unscrew a normally-threaded pedal over time. The reverse thread ensures that your pedalling action actually keeps it snug and secure.

Unscrew and Remove Both Pedals

Once you have broken the initial tension on both pedals, the rest is easy. You should be able to unscrew them the rest of the way by hand. Continue turning them in their respective loosening directions (right is anti-clockwise, left is clockwise) until they are completely free from the crank arms.

As you remove them, take note of the small 'L' and 'R' markings, usually stamped on the end of the axle or on the wrench flats. This is vital for ensuring you install them on the correct sides later.

Clean and Inspect the Crank Threads

With the pedals removed, take a clean rag and wipe out the threaded holes in the crank arms. Remove all the old grease, road grit, and any metal shavings. This is a perfect opportunity to inspect the threads for any signs of damage, such as stripping or cross-threading. Clean threads will ensure your new pedals install smoothly and tighten correctly. If you see significant damage, it's best to take your bike to a professional mechanic before proceeding.

Quick Reference

Situation	Use This Method	Why
Pedal is extremely tight	Apply penetrating oil and wait 15+ minutes	The oil needs time to seep into the threads and dissolve corrosion.
Unsure which way to turn	Think "push towards the back of the bike"	With the crank arm forward, pushing the wrench down/back works for both sides.
Tool keeps slipping	Use a dedicated pedal wrench, not an adjustable spanner	Pedal wrenches are thinner and grip the flats more securely.
Installing new pedals	Apply a thin layer of grease to the threads first	This prevents corrosion and seizing, making future removal much easier.

Common Problems When You Take Off a Bike Pedal

Even a simple job can have complications. Here are the most common issues you might face and how to solve them.

The Pedal is Completely Seized

This is the number one problem, usually caused by a combination of dirt, water ingress, and galvanic corrosion between the steel pedal axle and the alloy crank arm.

Solution 1: Penetrating Oil. Generously spray a penetrating fluid directly where the pedal axle meets the crank arm. Let it sit for at least 30 minutes, or even overnight for truly stubborn cases. Tap the area gently with a mallet to help the oil work its way into the threads.
Solution 2: Add Leverage. A pedal wrench with a longer handle provides more torque. If it's safe to do so, you can slide a sturdy metal pipe over your wrench handle (a 'cheater bar') to extend it, but be extremely careful. Apply force smoothly to avoid stripping the axle or damaging the crank.
Solution 3: Use Heat. This is an advanced method. Use a heat gun (never a naked flame) to gently warm the crank arm around the pedal axle. The aluminium crank will expand faster than the steel axle, which can help break the corrosive bond. The crank should only be hot to the touch, not glowing. Attempt to loosen the pedal immediately while it's warm.

The Wrench Flats or Allen Socket are Damaged

If a previous attempt was made with the wrong tool, the flats or socket may be 'rounded off', meaning your tool can no longer get a good grip.

Solution: For rounded flats, a good pair of locking pliers (like Mole Grips) might be able to bite into the metal hard enough to turn the axle. For a stripped Allen socket, the situation is more difficult and often requires drilling out the axle, a job best left to a professional bike shop.

Advanced Tips for Taking Off a Bike Pedal

Once you've mastered the basics, these tips can make the job faster and safer.

Use Your Foot for Power: For very tight pedals, you can use your body weight. With the crank arm forward and the wrench handle pointing towards the rear of the bike, carefully place your foot on the end of the wrench handle and press down firmly. Hold onto the bike for stability. This applies immense, controlled force.
Master the "Parallel Pull" Technique: Position the crank arm and the pedal wrench so they are parallel, both pointing forward. Grab the end of the crank arm with one hand and the end of the wrench with the other. Squeeze them together like a pair of nutcrackers. This coordinated force can easily break a stubborn pedal free.
Grease is Your Friend: The best tip for easy removal is proper installation. Always apply a thin layer of waterproof bike grease or anti-seize compound to the pedal threads before you screw them in. This creates a barrier against moisture and corrosion, guaranteeing they'll come off easily next time.

How Do You Take Off A Bike Pedal FAQ

Can I use a normal spanner instead of a pedal wrench?

It's not recommended. Most standard 15mm spanners are too thick to fit into the narrow space between the pedal body and the crank arm. A dedicated pedal wrench is thinner, longer for better leverage, and designed for the job.

What happens if I mix up the left and right pedals when installing?

You won't be able to install them. The reverse-threaded left pedal will not screw into the standard-threaded right crank arm, and vice versa. This is a built-in safety feature, but trying to force them can permanently damage the soft aluminium threads of your cranks.

How tight should I install my pedals?

They need to be firm, but not excessively tight. Screw them in by hand as far as they will go to ensure they are not cross-threaded. Then, use your wrench to give them a final firm snug-up, typically about a quarter-turn past hand-tight. There's no need to stand on the wrench when tightening.

Do all bikes use the same pedal thread size?

The vast majority of modern adult bikes use the same standard: 9/16" x 20 TPI (threads per inch). Some older French bikes, BMX bikes, or children's bikes with one-piece cranks may use a smaller 1/2" standard, but it's increasingly rare.

Final Checklist for Taking Off a Bike Pedal

Before you put your tools away, run through this quick final check to ensure you've done the job right.

Confirm you have the correct tool for your specific pedals.
Move the chain to the largest front chainring to protect your hands.
Attack the right pedal first, turning anti-clockwise to loosen.
Move to the left pedal, remembering to turn clockwise to loosen.
Apply steady, controlled force rather than sudden, jerky movements.
Once removed, wipe the crank arm threads clean and inspect for damage.
If installing new pedals, apply grease to the threads and start them by hand.
Keep the 'L' and 'R' pedals separate to avoid mix-ups during reinstallation.