I don't know about motorcycle run flats. I know Gooyear has had run flat tires for cars for several years. I visited their test track in San Angelo, Tx back about early 1970's when they were testing it.

2007 Ultra Classic
fire red/black pearl

 

Keep in mind this post is NOT about run flat for Motor cycles - Ya, the title says that but I was set straight.... to comment on your statement - Cars have run flat tires where I have seen video where a person took a hole saw and cut a large hole in the side wall of a CAR tire... that car was able to drive at decent speeds for some time...


again,,, this post is now looking at the Dunlop 402PT and I thank EVORider for their input....

 

i ran em for years at work..... never had a flat, but they are not meant to be ridden anywhere flat...they are meant to prevent a crash from rapid loss of air....the story i was told is chip tests them by puncturing both tires at 70mph.... supossedly they do work....im not up for that testing, i was told not for sale to public....but it appears not to be adheared to in this area