How to repair a punctured tubeless tyre | Step-by-step

Tubeless technology has transformed the cycling experience, whether on smooth roads or rugged off-road trails, yet it is not entirely infallible.

Tubeless tire sealant is engineered to promptly seal minor punctures, often resolving the issue without the rider even noticing. Nonetheless, there are instances where the size or location of a puncture demands more than just sealant to rectify.

In the following guide, we detail the methods for repairing a punctured tubeless tire, including using tubeless plugs, stick-on patches, or sewing to mend a substantial tear.

We also advise regularly inspecting the condition of your tires as part of the maintenance routine for a tubeless setup.

What do you need to repair a tubeless puncture?

To repair a tubeless tire puncture, you will need:

  • Tyre levers
  • Tubeless repair plug tool
  • Tubeless repair plugs
  • Pump

You may require a tire patch and/or a needle and thread for repairing large cuts or persistent punctures.

You may also require:

  • Fresh tubeless sealant if your old sealant has dried up
  • Replacement rim tape if the original tape is damaged
  • An inner tube if you can’t repair the tyre

How to fix a hole in a tubeless tyre using a tubeless plug

Tubeless puncture plugs offer a quick and typically effective solution for repairing a punctured tire without the need to remove the tire.

These repair kits are widely available in the market and function similarly, utilizing a rubber plug to seal the hole.

To repair the puncture, first locate the affected area and remove any debris using a pick or small pliers.

Next, use the tubeless plug tool to create a suitable hole for inserting the plug. Carefully insert the spike into the tire to avoid damaging the rim tape and twist to create a clean, round hole.

Tubeless puncture repair tools usually feature a pronged fork holding a rubber plug, often referred to as a “bacon strip,” or a metal spike with a plug attached. Attach a tubeless plug to the tool head, ensuring it matches the hole size.

Insert the tool into the tire, making sure not to push it all the way through. Slowly twist and remove the tool, leaving the end of the plug outside the tire.

Inflate the tire to the desired pressure, especially with high-pressure road tires, and position the wheel so the plug is at the bottom for a few minutes to allow sealant to flow into the repair and secure it.

Trim any excess plug length if needed, being cautious not to cut it too close to the tire.

How to patch a punctured tubeless tyre

For persistent tubeless tire punctures, internal patching may be necessary, similar to patching an inner tube.

Begin by roughening the surface where the patch will be applied using sandpaper, ensuring all debris from the puncture is removed. Cleanliness is crucial for effective patch adhesion.

Apply vulcanizing rubber solution to the designated area, allowing it to become tacky as instructed in the kit.

Place the tubeless tire patch on the prepared area and firmly press down, taking care not to touch the glued surface to prevent adhesive contamination.

Depending on the patch type, drying times may vary from minutes to hours before resealing the tire tubeless.

When done successfully, a patched tubeless tire can endure numerous rides, often lasting until the tire reaches the end of its lifespan.

How to repair serious tyre tears

A torn tire can pose a significant challenge for riders. These repair methods should be considered as temporary solutions to assist in getting you home safely before replacing the tire, rather than as permanent fixes.

How to patch a tyre with a tyre boot

A tire boot can be inserted without adhesive, secured in position by an inner tube. This flat boot serves to maintain a smooth internal surface, preventing the inner tube from protruding through a cut tire.

Pre-made boots are available for purchase, or you can create one using various materials such as toothpaste tubes, a segment of an inner tube, or even cash notes, all of which can effectively serve as makeshift tire boots.

How to sew a torn bike tyre

In the absence of a tire boot but with tooth floss and a needle in hand, you can stitch up a torn tubeless tire. Sewing perpendicular stitches to the direction of the slash can effectively keep the casing intact before inserting an inner tube.

When utilizing this technique, it is recommended to place a barrier, like a sturdy tape strip, between the sewn rubber and the inner tube for added protection.

For longer biking excursions such as bikepacking or touring adventures, carrying a needle and thread in your kit is advisable for fabric repairs and similar emergency situations.

When to give up and put in a tube

Despite your best efforts, there is always a possibility that a tubeless tire may be unrepairable on the road or trailside. Transitioning to an inner tube should be considered a last resort due to the messiness of dealing with sealant already present in the tire.

Before installing an inner tube, meticulously inspect the tire for punctures and any foreign objects like thorns. It is crucial to remain vigilant as there may be additional embedded items in the rubber that could cause further punctures to the inner tube.

Even with tubeless tires, snakebite punctures can occur, emphasizing the importance of maintaining appropriate tire pressures, especially when tackling rugged or rocky terrain to prevent double punctures from rim impacts. Repairing these close-to-the-bead holes can be exceptionally challenging.

In addition to punctured tires, other components requiring careful upkeep for a well-functioning tubeless system include rim tape, tubeless valves, and sealant. These maintenance tasks can be complex to address on the spot, making it necessary to switch to an inner tube temporarily and conduct a thorough inspection once back home.

Daniel Brooks

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