Sealant handles most tubeless punctures automatically, but thorns, glass shards, and small cuts sometimes leave holes too large for the liquid to seal on its own. When sealant bubbles out faster than it can plug the gap, you need a physical repair. Lezyne's Tubeless Tire Repair Kit provides the basics: a stainless steel reamer tool and five extra-tacky plugs packed into a machined aluminum canister that measures just 61.2mm long. The kit weighs 33 grams and disappears into a saddle bag or jersey pocket without adding noticeable bulk.

The repair process is straightforward. Locate the puncture, thread a plug onto the reamer tip, and push the tool through the hole from the outside. The reamer cleans and slightly enlarges the puncture while simultaneously inserting the plug. Pull the tool out, and the plug stays seated in the tire carcass. The sticky plug material bonds with the tire rubber and existing sealant to create a lasting seal. Trim any excess plug material flush with the tread, reinflate, and continue riding.

The stainless steel reamer resists corrosion from tire sealant exposure, which matters because you'll inevitably get sealant on the tool during repairs. Cheaper carbon steel reamers can rust and pit after contact with the ammonia-based compounds in many sealants. The stainless construction stays smooth and functional even after repeated use and imperfect cleaning. The reamer doubles as both the hole preparation tool and the plug insertion tool, combining two functions into a single implement.... Read More