How to Convert Bicycle Tires to Tubeless at Home

What Does Tubeless-Ready Mean?

Tubeless bicycle tires rely on an airtight seal between the tire and the rim, without an inner tube. The innerliner, the layer forming the inside surface of a tubeless tire, contains the air, as defined in federal safety standards. Tubeless-ready rims and tires are built with a tighter bead and reinforced sidewalls to make this seal possible.

However, even tubeless-ready wheels are not airtight from the factory. You must install rim tape over the spoke holes, add a tubeless valve, and fill the tire with liquid sealant. This converts the assembly into a sealed unit. If you are still choosing tires, our guide to the best bicycle tires can help you pick a model that works well without tubes.

Tools and Materials

Before you start, gather the right equipment. The conversion requires three key components: rim tape, a tubeless valve, and sealant. You also need common tools like tire levers and a pump or compressor. Here is what each item does:

• Rim tape: a strong, airtight tape that covers the spoke holes and creates a smooth surface for the tire bead to seal against.
• Tubeless valve: a special valve that fits through the rim's valve hole and includes a removable core for adding sealant.
• Sealant: a latex-based liquid that coats the inside of the tire, seals small punctures, and helps maintain air pressure.
• Tire levers: to help mount the tire onto the rim.
• A high-volume pump or compressor: to seat the tire bead into the rim's bead seat.
• Optional: a valve core remover and a sealant injector for easier installation.

Step 1: Prepare the Rim

Start by removing the existing tire and tube. Clean the rim bed with a dry cloth to remove dirt and old tape adhesive. Inspect the rim for sharp edges or damage that could cut the new tape. If the rim has spoke holes, the tape must cover them completely.

Apply the rim tape so it wraps around the rim's inner channel. Begin at the valve hole, pressing the tape down firmly, and work your way around. Overlap the beginning slightly to ensure a continuous seal. Use a plastic tire lever or a dedicated tool to press the tape into the profile of the rim, ensuring it adheres to the bead seat. A wrinkled or misaligned tape is the most common cause of persistent leaks.

Step 2: Install the Tubeless Valve

Insert the tubeless valve through the valve hole in the rim. The valve's rubber base should sit flush against the rim's surface. Tighten the nut just enough to secure the valve; over-tightening can deform the rim. Remove the valve core before inflation to allow maximum air flow, then reinstall it once the bead is seated.

If the valve leaks, you can apply a small amount of sealant around the base or use an O-ring for a better seal. Make sure the valve is straight and not tilted, which could cause air to escape. For more maintenance advice, see our bicycle tire guide.

Step 3: Mount the Tire and Add Sealant

Mount a side of the tire bead onto the rim. Use your hands or tire levers, but be careful not to pinch the bead. Once the first bead is seated in the rim's center channel, pour the sealant into the open side of the tire. The amount depends on the tire width; always follow the sealant manufacturer's recommended volume for your tire size.

After adding the sealant, mount the other bead. Start at the valve area and push the bead into the rim's drop center. Work your way around, using levers only if needed. Ensure the bead is not twisted or caught under the rim edge. This step sets the stage for a successful seal.

Step 4: Seat the Bead and Inflate

With the valve core removed, inflate the tire using a compressor or a high-volume pump. You may need to bounce the wheel to help the bead seat. You will hear a pop as the bead seats into place. If the tire does not seat within a short time, check for tape misalignment or a blocked valve. Applying soapy water to the bead can help it slide. If you need a new pump or compressor, consider our bicycle tire recommendations.

Once the bead is seated, reinstall the valve core and inflate to your desired pressure. Let the wheel sit for a short while, then spin it to distribute the sealant. You may see a little sealant weeping from the bead; this is normal and will stop as the sealant dries.

Step 5: Maintain and Top Up Sealant

After the initial setup, spin the wheel and check the pressure the next day. If the pressure dropped, add more sealant through the valve. Sealant dries over time, so you'll need to top it up every few months. The exact interval depends on climate and riding conditions, so listen for the sloshing sound to gauge when it's running low. For more sealant tips, see our bicycle tire guide.

Troubleshooting Common Problems

If the tire won't seat, check the rim tape alignment. A gap in the tape allows air to leak through spoke holes. Remove the tire, clean the rim, and reapply tape. Ensure the tape is wide enough to cover the bead seat and is pressed into the rim's drop center. Most seating failures trace back to tape that is too narrow or not fully adhered.

If the tire leaks at the bead, add sealant and spin the wheel to let it coat the site. Sometimes the bead is not fully seated; deflate, apply a bit of soapy water to the bead, and reinflate. A high-volume pump or air compressor helps the bead snap into place. For help picking a good tire for your wheel, see our guide to the best bicycle tires.

If the valve leaks, remove it and check the rubber base for debris or tears. Replace the O-ring if needed. Also verify that the valve is tightened evenly, not twisted. After the conversion, check the tire pressure before every ride; tubeless systems lose a little air over time. For a thorough overview of tire maintenance, see our bicycle tire buyer's guide.

What to pick for your use

Questions

Do I need to remove the tire and tube before conversion?

Yes, you must remove the existing tire and inner tube. The conversion process works with an empty rim.

Can I convert any wheel to tubeless?

No, only wheels that are tubeless-ready or designed for tubeless conversion have the proper bead profile and rim strength.

How often should I add sealant?

Sealant dries over time, so check it every few months. The interval depends on temperature and riding frequency.

What should I do if the tire does not seat?

Check the rim tape alignment, ensure the tire bead is well seated in the drop center, and try using a compressor or a high-volume pump to blast air quickly.