How To Change A Bicycle Tyre

Changing a bicycle tyre is a common maintenance task every cyclist should know. This guide will walk you through the process, whether you've got a flat inner tube, a completely worn-out tyre, or you're just upgrading. You'll learn how to safely remove the old tyre, inspect for damage, and install a new one, getting you back on the road or trail quickly and confidently.

Fast Answer

Key Tool: Tyre Levers
Most Common Issue: Pinching the inner tube during reinstallation

15-30 minutes Time needed

Moderate Difficulty

Pinching the inner tube Watch out for

Before You Start

Essential Tools: Make sure you have at least two tyre levers, a bicycle pump (with the correct valve fitting for your bike), and a new inner tube that matches your wheel size and tyre width. If you're repairing a puncture, you'll need a puncture repair kit instead of a new tube.
Gloves: Consider wearing work gloves to protect your hands and provide a better grip.
Clean Workspace: Find a clean, well-lit area where you can work without losing small parts. A cloth or old newspaper on the floor can help keep things tidy.
Basic Cleaning Supplies: A rag or old towel can be useful for wiping away dirt or grime from the wheel and tyre.
Wheel Removal Tools: For some bikes, you might need a spanner or hex key set to remove the wheel from the frame. Most modern bikes have quick-release skewers or thru-axles that don't require tools.

Check first: Always ensure the inner tube you're replacing is the correct size and valve type for your wheel and tyre. This information is usually printed on the side of your existing tyre (e.g., 700x25c or 26x1.95). Using the wrong size can lead to immediate punctures or difficulty fitting.

Step-by-Step Instructions

1. Prepare Your Bike and Workspace

Before you begin, place your bicycle in a stable position. If you have a bike stand, this is ideal. Otherwise, lean it against a wall or turn it upside down, resting on the saddle and handlebars. Gather all your tools within easy reach.

If you have a front flat, you'll work on the front wheel. If it's a rear flat, you'll need to remove the rear wheel. Changing a rear tyre can be slightly more complex due to the gears and chain, so take your time.

Tip: If working on the rear wheel, shift the gears to the smallest cog at the back. This makes it easier to remove and reinstall the chain.

2. Remove the Wheel from the Bicycle

This step varies depending on your bike's axle type:

Quick Release: Open the quick-release lever, usually found on one side of the wheel hub. If it's too tight, loosen the nut on the opposite side of the lever a few turns. For the rear wheel, pull the derailleur (gear mechanism) back slightly to free the chain, then push the wheel down and out.
Bolt-on Axle: Use a spanner to loosen the nuts on both sides of the axle. Once loose, the wheel should drop out. Remember to note any washers or spacers and where they belong.
Thru-Axle: These usually have a lever or a hex key fitting. Loosen and remove the thru-axle completely, then the wheel will slide out.

Once the wheel is free, set the bike aside carefully so it doesn't fall over.

3. Deflate the Tyre Completely

Find the valve stem on your inner tube. There are two common types:

Presta Valve: Unscrew the small knurled nut at the very top of the valve stem counter-clockwise until it's loose. Press down firmly on the tip of the valve to release all the air. You should hear a hiss.
Schrader Valve: This is similar to a car tyre valve. Use a small tool (like a pen cap or the tip of a tyre lever) to press down on the pin in the centre of the valve. Hold it down until all the air is out.

Make sure there is absolutely no air left in the inner tube. This is crucial for easy tyre removal.

4. Remove One Side of the Tyre

Once the tyre is fully deflated, push the bead (the edge of the tyre that sits in the rim) away from the rim all the way around the wheel on both sides. This "breaks the bead" and separates the tyre from the rim.

Now, take your tyre levers. Start opposite the valve stem. Hook the curved end of one lever under the bead of the tyre, pulling it up and over the rim flange. Once it's over, hook the other end of the lever onto a spoke to hold it in place.

Take your second tyre lever. Insert it next to the first one, about 5-10 cm away. Lever this section of the tyre bead over the rim as well. Once you've got a section over, you can often slide this second lever all the way around the rim, peeling the rest of the tyre bead off one side of the wheel.

Tip: If the tyre is very tight, try pushing the opposite side of the tyre bead into the deeper central channel of the rim. This creates more slack on the side you're trying to lever off.

5. Remove the Inner Tube

With one side of the tyre completely off the rim, you can now pull the inner tube out. Start by pushing the valve stem through the valve hole in the rim. Then, simply pull the rest of the inner tube out from inside the tyre.

If you're patching the tube, this is where you'd inspect it for the puncture. If you're replacing it, you can discard the old tube responsibly.

6. Inspect the Tyre and Rim for Damage

This is a critical step that many people skip. A new inner tube will only last if the cause of the puncture is removed or the tyre/rim is free from damage.

Inspect the Tyre: Carefully run your fingers along the inside of the tyre, feeling for any sharp objects (glass, thorns, small pieces of metal) that might have caused the puncture. Be cautious! Look for cuts, tears, or bulges on both the inside and outside of the tyre.
Inspect the Rim: Check the rim tape (the strip inside the rim that covers the spoke holes) for any damage or tears. A damaged rim tape can expose the inner tube to the sharp edges of the spoke holes, causing another flat. Also, check the rim itself for any burrs, sharp edges, or cracks, especially around the valve hole.

Safety: When inspecting the inside of the tyre, use your fingertips very carefully. If you find a sharp object, remove it with pliers or tweezers, not your bare fingers, to avoid injury.

7. Install the New Inner Tube (or Repaired One)

Before installing the new tube, put a tiny amount of air into it – just enough so it holds a round shape but isn't stiff. This makes it easier to position and helps prevent pinching.

Insert the valve stem of the inner tube through the valve hole in the rim. Make sure it's straight and stands upright. Then, carefully tuck the rest of the slightly inflated tube inside the tyre, working your way around the wheel. Ensure the tube isn't twisted or folded anywhere inside the tyre.

8. Seat One Side of the Tyre Back On

With the new inner tube loosely in place, begin to push one bead of the tyre back onto the rim. Start opposite the valve stem and work your way around the wheel. This side should go on relatively easily using just your hands and thumbs.

Once one side of the tyre is fully seated, give the tyre a quick check to make sure the inner tube isn't poking out anywhere between the tyre bead and the rim.

9. Seat the Other Side of the Tyre

This is often the trickiest part. Start opposite the valve stem again. Work your way around the wheel, pushing the remaining tyre bead over the rim using your thumbs. As you get towards the last section, it will become very tight.

When you have about 10-20 cm left, stop. Push the tyre beads on both sides of the wheel into the centre channel of the rim all the way around the wheel. This creates crucial slack at the stubborn section.

Now, try to push the final section of the tyre bead over the rim with your thumbs. If it's still too tight, you can use a single tyre lever, but be extremely careful not to pinch the inner tube between the tyre bead and the rim or lever. Hook the lever under the tyre bead and carefully pry it over the rim, taking small sections at a time. Finish the last part by hand if possible.

Tip: After seating the second bead, briefly inflate the tyre to about 10-20 PSI (0.7-1.4 bar). Then, go around the entire tyre, pushing the tyre bead in towards the rim with your thumbs to ensure it's properly seated and not pinched. Deflate fully and reinflate to check for an even bead line.

10. Inflate the Tyre and Reinstall the Wheel

Once both tyre beads are fully seated on the rim and you've double-checked for any tube pinches, it's time to inflate.

Inflate the tyre slowly, pausing every now and then to check that the tyre bead is evenly seated all the way around the rim. Look for the "bead line" (a faint line just above the rim) to be consistent on both sides of the tyre. If it looks uneven or part of the inner tube seems to be bulging out, deflate immediately and re-seat the tyre.

Inflate the tyre to the recommended pressure, which is usually printed on the side of the tyre itself. Do not exceed the maximum pressure.

Finally, reinstall the wheel back onto your bicycle. For the rear wheel, guide the chain onto the smallest cog and gently pull back the derailleur to help the wheel slot into place. Close the quick-release lever or tighten the axle nuts/thru-axle securely. Give the wheel a spin to ensure it runs freely and doesn't rub against the brakes or frame.

Quick Reference

Situation	Use this approach	Why
Puncture on a ride	Patch kit for inner tube	Lighter and more compact to carry, quicker temporary fix than a full tube change if you're in a hurry.
Puncture at home	New inner tube	Most reliable long-term fix, less chance of a patch failing. Always good to have spares.
Tyre is worn or cut	New tyre and inner tube	Essential for safety and performance; worn tyres have poor grip and are more prone to punctures.
Tyre is difficult to remove/install	Use more tyre levers (3 can help), warm the tyre up, apply soapy water to bead.	Helps make the rubber more pliable and slippery, reducing friction.

Common Problems When You Change a Bicycle Tyre

Even with careful instructions, you might run into a few snags. Here are some common issues and how to fix them:

Pinching the Inner Tube

This is probably the most frequent mistake. It happens when a small section of the inner tube gets trapped between the tyre bead and the rim during reinstallation. When you inflate the tyre, this pinched section either bursts immediately or soon after. You'll hear a loud pop or a slow leak from the pinched spot.

Fix: Fully deflate the tyre, remove one side, and carefully check the entire inner tube for pinches or folds before attempting to re-seat the tyre. Ensure the tube is slightly inflated before fitting it and push the tyre bead towards the centre of the rim as you work. Avoid using tyre levers for the very last part of seating the tyre if possible; use your thumbs.

Tyre Won't Go On or Off the Rim

Some tyre and rim combinations are notoriously tight. This can be frustrating, making you feel like you're not strong enough or doing something wrong.

Fix: Make sure the tyre is fully deflated and both beads are pushed into the deepest part of the rim's centre channel. For removal, ensure the opposite side of the tyre is pushed into the centre. For installation, always work from the valve stem, pushing the tyre bead into the centre channel to create slack. You can also try warming the tyre in the sun or with a hairdryer (briefly) to make the rubber more pliable. A little soapy water or tyre-fitting fluid on the bead can also help it slide.

Valve Stem Isn't Straight

If the valve stem isn't sitting straight in its hole, it can cause the inner tube to bulge, make pumping difficult, or even tear the tube over time.

Fix: Before fully inflating the tyre, push the valve stem firmly up into the rim. This helps ensure it's sitting correctly. Then, inflate a small amount, push the valve up again, and repeat this process as you slowly inflate. This allows the inner tube to settle properly around the valve base.

Tyre Still Goes Flat After Replacement

You've done all the work, but the tyre still loses air. This is disheartening, but usually fixable.

Fix: This typically means you missed something during the inspection step. Deflate the tyre and remove the tube again. Carefully re-inspect the inside of the tyre for any small thorns, glass shards, or metal fragments that might still be embedded. Pay close attention to the area where the new puncture occurred. Also, check your rim tape thoroughly for any damage, and ensure the valve core is tight (Presta) or functioning correctly.

Tyre Bead Won't Seat Evenly

After inflation, you might notice a section of the tyre bead looks like it's not fully "popped" onto the rim, often with a visible gap or uneven bead line.

Fix: Deflate the tyre slightly. Apply some soapy water to the unseated section of the tyre bead where it meets the rim. Then, slowly inflate again, sometimes to slightly higher pressure (but still within the tyre's maximum limit), which might help the bead "pop" into place. Once it seats, reduce the pressure to your desired level. If this doesn't work, fully deflate, unseat that side of the tyre, and try again, ensuring the tube isn't pinched.

Advanced Tips for How To Change A Bicycle Tyre

Once you're comfortable with the basics, these tips can make the process smoother, faster, or more efficient in the long run.

Use Talcum Powder

Before installing a new inner tube, dust it lightly with talcum powder. This prevents the tube from sticking to the inside of the tyre and helps it move more freely as you inflate it. This reduces the chance of pinching and makes future removals easier.

Pre-Stretching New Tyres

New tyres, especially folding ones, can be very stiff. To make them easier to install, fit them to a rim without an inner tube for a day or two, or gently stretch them by hand. This can help "relax" the rubber and make the final installation much less of a struggle.

Carry a Spare Pre-Inflated Tube

When out on a ride, don't carry a completely flat spare tube. Inflate it with a tiny bit of air (just enough to give it shape) before packing it. This makes it much easier to install quickly if you get a flat on the go, reducing the chance of pinching.

Check Tyre Direction

Many bicycle tyres have a specific rolling direction, indicated by an arrow on the sidewall. While not critical for changing the inner tube, always ensure you reinstall the wheel with the tyre facing the correct direction for optimal performance and safety.

Consider Tubeless Systems (For Advanced Riders)

For more experienced riders, especially on mountain bikes or gravel bikes, converting to a tubeless tyre system can offer benefits like fewer punctures (sealant seals small holes) and the ability to run lower pressures for better grip. This is a more complex setup and usually involves specific rims, tyres, and sealant, but it's an option for those looking to upgrade from traditional inner tubes.

Tyre Lever Technique

When using tyre levers, always try to "push" the tyre off rather than "pulling" the lever, which puts more stress on the tool and the tyre. And remember the golden rule: avoid using levers to put the *last* bit of the tyre on if you can help it, as this is where most pinches occur.

Regular Tyre Maintenance

Don't wait for a flat. Regularly inspect your tyres for wear, cuts, or embedded debris. Early detection of a worn tyre or a small piece of glass can prevent a full-blown puncture. Maintain correct tyre pressure as well, as under-inflated tyres are more prone to pinch flats.

How To Change A Bicycle Tyre FAQ

Here are answers to some common questions about changing bicycle tyres:

How often should I change my bicycle tyre?

There's no fixed schedule. Tyres should be changed when they show significant wear, such as a flattened tread (especially in the centre), visible cuts or cracks in the sidewall, or exposed casing. If you're getting frequent punctures, it's also a good sign the tyre might be worn out or damaged. For casual riders, this might be every few years; for daily commuters, perhaps annually.

Can I use a car pump for a bicycle tyre?

Yes, many car tyre pumps (like those at petrol stations) can be used for bicycle tyres, but only if your bicycle has Schrader valves (the wider, car-style valve). If you have Presta valves, you'll need a special adapter to use a car pump, or a dedicated bicycle pump. Be very careful with car pumps as they can deliver air very quickly, making it easy to over-inflate and burst a bicycle tyre.

What's the difference between inner tube valve types?

The two main types are Presta and Schrader.

Presta valves: Thinner, usually found on road bikes and higher-end bikes. They have a small nut at the top you unscrew to open, then push down to release air or pump. They hold pressure well.
Schrader valves: Wider, similar to car valves, often found on mountain bikes, hybrid bikes, and kids' bikes. You press a pin in the centre to release air.

You must use an inner tube with the correct valve type for your rim's valve hole.

Do I need to replace the tyre every time I get a puncture?

No, not necessarily. If the puncture is due to a simple thorn or pinch flat and your tyre is otherwise in good condition, you can just replace or patch the inner tube. However, if the puncture was caused by a large cut or object that severely damaged the tyre itself, then replacing the outer tyre is recommended for safety and to prevent future flats.

How do I know what size inner tube to buy?

Look at the sidewall of your existing tyre. It will have numbers like "700x23c," "29x2.1," or "26x1.95." The first number refers to the wheel diameter (e.g., 700c, 29 inches, 26 inches), and the second refers to the tyre width (e.g., 23mm, 2.1 inches, 1.95 inches). Inner tubes are usually sold with a range of compatible widths (e.g., "700x20-25c"). Ensure both numbers match your tyre.

Final Checklist for How To Change A Bicycle Tyre

Before you hit the road again, run through this quick checklist to ensure everything is safe and secure:

Tyre Fully Inflated: Is the tyre inflated to the correct pressure (within the range printed on the tyre sidewall)?
Bead Seated Evenly: Has the tyre bead seated properly all the way around the rim on both sides? Look for a consistent bead line.
Valve Stem Straight: Is the valve stem sitting straight in the valve hole, not leaning or twisted?
Wheel Securely Attached: Is the quick-release lever closed tightly, or are the axle nuts/thru-axle tightened correctly?
Brakes Clear: Does the wheel spin freely without rubbing against the brake pads or frame?
Gears Checked (Rear Wheel): If you removed the rear wheel, is the chain properly seated on the cassette and are the gears shifting smoothly?
No Loose Tools: Have you packed away all your tools, especially the tyre levers?
Test Ride: Take a short, careful ride at low speed to ensure everything feels right before heading out on a longer journey.

By following these steps and checks, you'll gain confidence in managing your bicycle's tyres, a fundamental skill for any rider.