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Message: <blockquote data-quote="cempaka" data-source="post: 290313" data-attributes="member: 7014">Actually it really depends on the location of the puncture.  you cannot say all punctures/repairs dangerous etc. because each one is unique depending on type and location. Punctures on the central part of the tread are generally safe to repair and use even at higher speeds because of the steel radial ply construction used there. For those that have never seen a tire dissected, it means that there is steel fiber embedded into the tread rubber.  This means there is strong resistance to disintegration there. The most common puncture in this area is running over a nail or something as not much else (not glass, sharp stones etc) can even puncture it there because of the steel.  Thus even if your patch were to somehow come out which is rather unlikely, you would experience gradual deflation rather than explosion.  However, the sidewall of regular tires is not reinforced with steel because it needs to flex.  This makes punctures in this area impossible to safely repair because there is no support for the patch and no "backup" if it fails.  It also means that if part of the sidewall fails, the rest can quickly disintegrate which is the classic tire blowout.  Punctures near the corners, between the sidewall and tread may or may not be possible to patch depending on location but carry increased risk for obvious reasons.RFTs are basically designed to give tread style strength to the sidewalls while maintaining low enough mass and enough flexibility to drive with.  Repairing a center tread puncture on one should be ok if not much mileage was done in the deflated state. However, if you drive a deflated RFT for a long distance   before fixing it (100+ km or so, depends on tire) then repair is not advisable because the sidewall may have been permanently weakened, as maxxsp said.</blockquote>

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