Patch-N-Plug is one of the best repairs for nail hole injuries in the crown or sidewall, including speed rated radial tires. Cord reinforced radial and conventional all-rubber units are offered.
Drill out injury hole, then cement the repair on the inside of the tire and push through the hole. Using pliers, pull the quill until the repair unit seats. Stitch the patch-N-Plug down from the inside and cut off excess plug rubber so that it will flush with the crown or sidewall.