I've had two punctures on the rear tires of my Wee-strom. The first was a 10-penny nail that went at a tangent up the left sidewall. That was at 3,000 miles since new and I changed that tire as I didn't want a side-wall blow-out. There's no practical way to repair that. The second was small sliver of glass that went into the center of the tire between the tread-blocks. It was a slow leak, which I found while the bike was at home in the carport. I dismounted the tire and took it to the Kaw shop and they put a plug-patch in it. That was about 5,000 miles ago. The tire was about 1/2 worn then, and it is due for replacement soon. Has never leaked. On both bikes I carry repair kits with Stop-N-Go plugs and sticky string, Slime-brand electirc pumps and also mountain-bike type hand pumps just in case, but I would consider those type of repairs as just a get-me-home, then do the plug-patch as a permanent fix.