Have owned my Comet for 61 years now and seem to remember that in the past the tyres maintained pressure for many months.
Over the last few years however I have found that they rapidly lose pressure - dropping from say 30psi to 20 psi in a couple of weeks.
I ride the bike most weeks all year round but have to check and re-inflate my tyres most times I take it out !!
I have renewed the tubes, tyres and pressure caps a few times in the last 10 years or so and hoped that pressure would be maintained, but this has not been so and I have a similar problem with a 1976 Suzuki with tubed tyres.
Do the tube manufacturers now use some much more porous and probably cheaper material now to make tubes - bearing in mind also that with tubeless tyres now much more common, there is probably less demand for a good product?
I believed that the tubes I have used were from a reputable manufacturer, but has anyone had a similar problem and then found a manufacturer whose tubes are not porous please?
Matty
Over the last few years however I have found that they rapidly lose pressure - dropping from say 30psi to 20 psi in a couple of weeks.
I ride the bike most weeks all year round but have to check and re-inflate my tyres most times I take it out !!
I have renewed the tubes, tyres and pressure caps a few times in the last 10 years or so and hoped that pressure would be maintained, but this has not been so and I have a similar problem with a 1976 Suzuki with tubed tyres.
Do the tube manufacturers now use some much more porous and probably cheaper material now to make tubes - bearing in mind also that with tubeless tyres now much more common, there is probably less demand for a good product?
I believed that the tubes I have used were from a reputable manufacturer, but has anyone had a similar problem and then found a manufacturer whose tubes are not porous please?
Matty