How to repair a tire with a sidewall cut

Written by john walker
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How to repair a tire with a sidewall cut
The exterior rubber is designed to allow for substantial cuts and slices before the inner plies are damaged. (Hemera Technologies/ Images)

Damage to a tyre's sidewall can be repaired, provided the cut is shorter than a quarter inch and does not penetrate the outer rubber lining. The repair can be completed using a simple plug kit if the slice is topical only. Replace the tire if you see steel threads, or if the damage compromises the outer rubber lining.

Skill level:

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Things you need

  • Tire repair kit
  • Air pump

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  1. 1

    Rotate the tire until the sliced area is easily visible and the sidewall surrounding the slide is flat.

  2. 2

    Examine the hole using the probe provided in the tire-repair kit to gauge how thick the slice is. Replace the tire if the probe can move around substantially.

  3. 3

    Apply some lubricant to the hole by dipping the probe into the supplied bottle of lube and inserting it into the hole.

  4. 4

    Attach a plug to the closed-eye hook from the kit and push the plug completely through the hole. Pull the plug halfway out. Cut the plug flush with the surface of the tire.

Tips and warnings

  • Plugging a sidewall is not a permanent fix. Only use this method as a temporary fix until the tire can be replaced.

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