Quote:
Originally Posted by Coley  Hi, you can get this green stuff that lines the outside of the inner tube for resistance to punctures. I've used it for over a year and cycle every day and not one puncture. No matter what i've ridden over. |
Halfords were selling a similar (liquid) product manufactured by Holts around 45 years ago. It was very successful in all types of tyres.
Some cars come these without a spare and have all four tyres treated with a similar liquid product eg Honda.
John D