From today's General Motorcycle Discussion forum, Same Tire.... twice!!!!!!!!
"....Call up the auto-club at about 7AM and wait.........wait..............wait. Finally he arrives at 8:15AM. I ask him if he can plug a tire on the side of the road and he said yes. So we try to pull the finishing nail out of my rear tire but it got pushed in instead. Put the tire plug in and hand the guy a $20 and I go on my way. Happy as a clam that I can continue to ride home.
Then about 20miles later, once I am on the highway I notice that the rear end is starting to sway right and left slightly. I start cursing out loud,while doing about 60 MPH, because I suspect the rear tire to be flat again. Sure enough once I pull of to the shoulder on the right and take a look the tire is FLAT!!!!!! So I limp the bike over to the next exit going only about 10MPH on the shoulder and get off and stop at the gas station. Looked at the tire and notice that the plug is MISSING!....."
So everyone has different experiences. There is no finite answer to whether to use a plug or not, I think.
Reputable shops will not install plugs nor mount tires with plugs. There must be a reason like liability.
I have installed the Stop-&-Go mushroom head plugs in 2 people's rear tires with great success. One I know road a full summer with it in. They cannot fall inside the tire if installed properly and the hole diameter is not too large for the plug (same for any plug). The Iron Butt riders used them for years and where happy with them.
Personally, I would use any plug if it meant getting home and there was no alternative. Then replace the tire for a bike that I would use at highway or higher speeds. I would never use a plug in a bike that might spin the tire (and potentially dislodge the plug) or that would see speed of 100 kph or higher.
There are many factors to be considered by the owner (I am sure others can add more):
- Speed to be run at
- motorcycle tires flex more than car tires in the tread area, so plugs may be more appropriate for car tires, thus Canadian Tire
- diameter of the hole in the tire, will a plug seal or are multiple plugs needed?
- is it going to be reamed properly, a newbie to installing plugs may well ream the hole and cords improperly damaging the plug over time
- is the operator able to install the plug to the proper depth
- type of bike and tires, supersport bikes can hit 300 kph = no plugging; dirt trail bike type dual sport = plug it if not a tube type
- type of tire
- rider confidence in riding worry free with a plug in a tire