How to Change Bike Pedals: A Step-by-Step Guide

Knowing how to change your bike pedals is an important skill for any cyclist. Whether you need to replace worn-out pedals, switch to a different style, or simply perform routine maintenance, being able to remove and install pedals yourself can save time and money. In this guide, we’ll walk you through the process step-by-step, covering everything from the tools you’ll need to tips for dealing with common issues.

Why You Might Need to Change Your Bike Pedals

There are several reasons why you might need to change your bike pedals:

Your current pedals are worn out and need to be replaced
You want to switch to a different style of pedal, such as moving from flat pedals to clipless pedals
You’re doing routine maintenance and want to clean and re-grease the threads

Whatever the reason, being able to change your own pedals is a valuable skill for any cyclist. It can save you a trip to the bike shop and give you a better understanding of how your bike works.

Understanding Left vs Right Bike Pedals

One important thing to know before you start is that bike pedals are not interchangeable between sides. The right pedal has a regular right-hand thread, while the left pedal has a reverse left-hand thread. This is to prevent the pedals from unscrewing as you ride.

When installing pedals, always remember:

The right pedal tightens clockwise
The left pedal tightens counterclockwise

Most pedals will be marked with an “R” and an “L” to indicate which side they belong on. Be sure to install them on the correct side to avoid damaging the threads.

Tools Required for Changing Bike Pedals

Essential Tools for the Job

To change your bike pedals, you’ll need the following tools:

A 15mm open-end spanner, or
An 8mm hex key (for pedals with a hex socket on the spindle)

Most pedals can be installed and removed with one of these two common bike tools. However, if your pedals are especially tight, you may need a specialty pedal wrench for extra leverage.

Optional Tools for Easier Pedal Removal

In addition to the essentials, there are a few other tools that can make the job easier:

A pedal wrench, which provides more leverage for stubborn pedals
A workstand to hold your bike steady while you work
Grease to apply to the threads before installing the new pedals

While not strictly necessary, these tools can save you time and frustration, especially if you change pedals frequently.

Step-by-Step Guide to Changing Bike Pedals

Step 1: Preparing Your Bike

Before you start, it’s a good idea to clean your bike, especially around the cranks and pedals. This will help you see what you’re doing and prevent dirt and grime from getting into the threads. If your bike is very dirty, you may want to clean the area with a degreaser first.

Once your bike is clean, flip it over and rest it on its saddle and handlebars. If you have a repair stand, use that instead. Having the bike stable and at a comfortable working height will make the job much easier.

Step 2: Removing the Old Pedals

To remove the old pedals:

Identify which pedal is reverse threaded (the left pedal). You’ll be turning it clockwise to loosen.
Place the spanner or hex key on the wrench flats between the pedal and crank arm.
Turn the tool counterclockwise for the right pedal, or clockwise for the left pedal.
If the pedal is stuck, try applying more force. You may need to use a pedal wrench for extra leverage.
Once loose, finish unscrewing the pedal by hand and remove it.

Repeat the process on the other side. If the pedals are very tight, don’t force them – you may strip the threads. Apply penetrating oil and let it sit for a while before trying again.

Step 3: Cleaning the Threads

With the old pedals removed, take the opportunity to clean the threads on the cranks (and the new pedals, if they aren’t new). Use a brush or cloth to remove any dirt or old grease.

If the threads are damaged, it’s best to have them repaired by a professional. Riding with damaged threads can cause the pedals to come loose unexpectedly.

Once clean, apply a thin layer of grease to the threads. This will help prevent seizing and make the pedals easier to remove next time.

Step 4: Installing the New Pedals

To install the new pedals:

Check the pedal for an “R” or “L” mark indicating the correct side.
Start threading the right pedal into the right crank by hand, turning clockwise. It should thread in smoothly.
Once you can no longer turn it by hand, use the wrench to tighten it the rest of the way. Don’t force it.
Repeat the process on the left side, threading counterclockwise.

Tighten the pedals firmly, but be careful not to overtighten, as this can damage the threads. Check your pedals’ documentation for the recommended torque value.

Tips and Tricks for Easier Pedal Changes

Using Proper Leverage

Pedals can be stubborn, especially if they’ve been in place for a long time. To avoid damaging the threads, it’s important to use proper leverage when loosening and tightening them.

A long-handled pedal wrench can give you the leverage you need without putting too much stress on the threads. If you don’t have a pedal wrench, try using a length of pipe over your usual spanner to extend the handle.

Applying Grease for Easier Future Removal

One simple step that can save you a lot of trouble down the line is applying a bit of grease to the threads before installing your pedals. This has several benefits:

It prevents the pedals from seizing in place, making future removal much easier
It protects the threads from damage caused by friction
It prevents creaking caused by small movements between the pedal and crank

You don’t need much – a thin layer applied with your finger is plenty. Make sure to wipe away any excess so it doesn’t attract dirt.

Common Issues and How to Solve Them

Difficulty in Removing Pedals

One of the most common issues when changing pedals is difficulty in removing the old ones. Over time, pedals can become very tightly fixed in place, especially if they weren’t greased before installation.

If your pedals won’t budge, try these tips:

Use a pedal wrench or breaker bar for extra leverage
Apply penetrating oil and let it soak in before trying again
Make sure you’re turning the pedals the correct way (counterclockwise for right, clockwise for left)
If all else fails, take your bike to a professional – forcing the issue can damage your cranks

With patience and the proper tools, most stuck pedals can be removed. Just be careful not to damage the threads in the process.

Cross-Threading Issues

Another common problem is cross-threading, which occurs when the pedal is started at an angle and the threads become misaligned. This can damage the threads on the crank arm, making it difficult or impossible to install pedals correctly.

To prevent cross-threading:

Always start the pedal by hand, not with the wrench
Make sure the pedal is going in straight – if you feel resistance, back it out and try again at a slightly different angle
Apply grease to the threads so minor cross-threading is less likely to cause damage

If your pedal does become cross-threaded, stop immediately. Continuing to force it will only cause more damage. Take your bike to a professional to have the threads repaired.

Conclusion

Recap of Key Steps

Changing your bike pedals is a straightforward process that every cyclist should know how to do. To recap, the key steps are:

Make sure you have the right tools for the job
Clean the area around the pedals and cranks before starting
Remove the old pedals, being careful to turn them the correct direction
Clean and grease the threads on the crank and new pedals
Install the new pedals, making sure not to cross-thread them

With a bit of practice, you’ll be able to change pedals quickly and easily, without needing to visit a bike shop.

Final Tips for Successful Pedal Changes

Here are a few final tips to keep in mind:

Always apply grease to the threads before installing pedals
If a pedal won’t budge, don’t force it – you may damage the threads
Make sure to tighten the pedals securely, but not too tight
If you’re unsure about anything, consult a professional mechanic

With the right tools, a bit of know-how, and these tips, you’ll be able to change your pedals with confidence. Happy riding!

Introduction to Changing Bike Pedals