Tubeless tires can be patched at home, but the method depends on whether the puncture is small or large

A tubeless tire holds air without an inner tube, sealed by a liquid sealant inside the tire. When you puncture it, the sealant often plugs the hole on its own—you may not notice until the tire loses pressure over hours or days. If the sealant doesn't seal the hole, or if the puncture is too large, you can patch it from inside the tire using a plug kit, or remove the tire and patch it from the outside. Small punctures (under 6 millimeters) usually respond to a plug; larger holes or sidewall damage may require a full tire replacement.

The repair method also depends on what caused the damage. A thorn or small sharp object leaves a puncture the sealant can handle. A pinch flat—two small holes on opposite sides of the tire—happens when the tire compresses hard against the rim and needs a plug kit. A slash or large tear cannot be safely repaired and means replacing the tire.

Key Takeaways

  • Small punctures under 6 millimeters can often be sealed with a plug kit inserted through the valve, without removing the tire from the rim.
  • You will need a tubeless plug kit, a reamer tool, and a plug insertion tool—all usually included in one kit—plus a bicycle pump.
  • If the sealant has dried out or the puncture is too large, you may need to remove the tire, patch it from the outside, and reseal it with fresh sealant.
  • Sidewall punctures and tears larger than 6 millimeters cannot be safely repaired and require a new tire.
  • After any repair, check the tire pressure within a few hours and again the next day to confirm the seal is holding.

Locate the puncture and check sealant condition

Spin the wheel slowly and look for liquid sealant leaking from the tire. If you see wet sealant, the hole is small enough that the sealant is trying to seal it—this is a good sign. Wipe away the sealant with a rag so you can see the hole clearly. If no sealant is leaking, the hole may be on the sidewall (the curved part of the tire, not the tread), or the sealant may have dried out.

Press the tire to feel how much air remains. If it still holds most of its pressure, the puncture is small. If it is nearly flat, the hole is larger or the sealant has failed. Spin the wheel again and listen for air hissing out; this tells you the hole is still open and leaking.

Check the age of your sealant. Tubeless sealant dries out over two to six months depending on temperature and humidity. If your tire has been sealed for more than six months, the sealant may no longer be liquid enough to seal new punctures. You can still repair the tire, but you may need to add fresh sealant after plugging the hole.

Use a plug kit for punctures in the tire tread

A tubeless plug kit contains a reamer (a rough tool that widens the hole), a plug insertion tool (usually a long stick with a slot), and rubber plugs (small strips of rubber). Most kits fit inside a pouch small enough to carry on a ride. You will also need a bicycle pump to reinflate the tire after repair.

First, locate the hole precisely. If sealant is still leaking, wipe it away. Insert the reamer tool into the hole and twist it back and forth several times. This roughens the inside of the hole so the plug will grip. Do not ream too aggressively—you are widening the hole slightly, not enlarging it dramatically.

Thread a rubber plug into the slot of the insertion tool. The plug should stick out from the tool by about half an inch. Push the tool and plug into the hole, twisting slightly as you go. Once the plug is fully inside the tire, pull the insertion tool straight out. The plug will stay in the tire. The excess plug material sticking out of the hole will be trimmed by the tire's motion over the next few rides, or you can trim it with scissors.

Reinflate the tire to its recommended pressure (printed on the tire sidewall). Listen and feel for air leaking from the repair. If you hear hissing, the plug did not seal—try a second plug, or move to the removal method below.

Remove the tire and patch from the outside for larger holes

If the plug method does not hold, or if the hole is larger than 6 millimeters, you will need to remove the tire from the rim and patch it from the inside. Use tire levers to pry the tire bead (the edge that sits on the rim) away from the rim. Work your way around the wheel, lifting one side of the tire completely off. You do not need to remove the tire entirely—just enough to access the inside.

Clean the area around the puncture with a rag to remove dried sealant and debris. Inspect the hole from the inside. If it is a clean puncture, you can patch it. If it is a tear or slash longer than 6 millimeters, the tire cannot be safely repaired.

Use a tubeless tire patch kit, which includes adhesive patches and a roughening tool. Roughen the area around the hole with the tool provided in the kit, following the kit's instructions. explore the adhesive (usually a thin layer of rubber cement) to both the patch and the roughened area. Wait the time specified by the kit—usually 30 seconds to one minute—then press the patch firmly onto the hole from the inside. Hold it for the time recommended, usually one to two minutes.

Once the patch has set, reseal the tire with fresh tubeless sealant. Pour the sealant through the valve stem using a sealant injector (a small tube that comes with most sealant bottles). The amount varies by tire size—check the sealant bottle for guidance, usually 2 to 4 ounces per tire. Rotate the wheel to distribute the sealant evenly inside the tire, then reinstall the tire bead onto the rim.

Reinflate and test the repair

Use a floor pump or compressor to reinflate the tire to its recommended pressure. Tubeless tires often require higher pressure to seat the bead (the edge that locks onto the rim) than standard tires—you may need 40 to 60 pounds per square inch (psi) to hear the bead click into place. Once seated, reduce the pressure to your normal riding pressure.

Spin the wheel and listen for air leaking from the repair. If you hear hissing, the patch or plug did not seal. Let the tire sit for 10 minutes—sometimes sealant needs time to flow and seal around a patch. Then check again. If it is still leaking, you may need a second patch or a new tire.

Check the tire pressure again after one hour, then again the next morning. A properly sealed tubeless tire should lose no more than 5 psi overnight. If it loses more, the repair is not holding and the tire needs replacement.

Prevent future punctures and maintain sealant

Inspect your tires regularly for thorns, glass, or sharp objects embedded in the tread. Remove them when ready—the longer they stay, the more likely the hole will enlarge. Check tire pressure at least once a week. Tubeless tires lose pressure more slowly than tubed tires, but a slow leak can indicate a failing seal or a new puncture.

Replace your sealant every two to six months, depending on your climate. In hot, dry conditions, sealant dries faster. In cool, humid conditions, it lasts longer. To refresh the sealant without removing the tire, inject fresh sealant through the valve stem. You do not need to remove the old sealant—new sealant mixes with the old and reactivates it.

Avoid riding through areas with thorns, broken glass, or sharp gravel when possible. If you must ride through rough terrain, consider running slightly higher pressure than normal—this reduces the chance of pinch flats and may help sealant seal punctures faster.

When to replace the tire instead of repairing it

Some damage cannot be safely repaired. Replace the tire if the puncture is on the sidewall (the curved part of the tire, not the tread), if the hole is larger than 6 millimeters, or if the tire has multiple punctures close together. Sidewall damage compromises the tire's structural integrity and will fail under load, even if patched.

If the tire has a slash or tear rather than a puncture, replacement is the safest option. A patch will hold for a while, but the damaged area is weaker and may fail suddenly during a ride. Tubeless tires are not cheap, but they are cheaper than a crash.

If you have patched the same tire more than twice in the last year, consider replacing it. Repeated repairs indicate the tire is wearing out or the sealant is failing, and the tire is becoming unreliable.

Frequently Asked Questions

Can I use a regular inner tube patch kit on a tubeless tire?

No. Inner tube patches are designed for thin rubber and use different adhesive. Tubeless patches are thicker and use stronger adhesive formulated for the thicker rubber of a tubeless tire. Using the wrong patch will fail within hours or days. Buy a tubeless-specific patch kit.

What if sealant keeps leaking out of the hole?

This usually means the hole is too large or too rough for the sealant to seal. Stop the leak by inserting a plug kit first, which will block the hole and give the sealant a chance to set. If the plug does not hold, the hole is likely larger than 6 millimeters and the tire needs a patch or replacement.

Do I need to remove the tire to use a plug kit?

No. A plug kit works through the valve stem without removing the tire. This is the fastest roadside repair. You only need to remove the tire if the plug fails or if the hole is too large for a plug.

How long does a tubeless tire patch last?

A properly applied patch can last the life of the tire if the tire is not damaged further. However, a patched tire is slightly weaker than an unpatched one. If you patch the same tire multiple times, replace it to avoid failure during a ride.

Can I ride when ready after patching a tubeless tire?

After a plug kit repair, yes—you can ride as soon as the tire is reinflated and you have confirmed no air is leaking. After a patch repair, wait at least one hour for the adhesive to fully cure before riding hard. Check the pressure again before you ride to confirm the seal is holding.