I've read on this website:
http://www.flamesonmytank.co.za/offRoad.htm
that inner tubes should be replaced every 20 000km even if they have never sustained a puncture.
`Touch wood` - I've never sustained a puncture and will be putting new rubber on my F650GS on Monday, front and back.
Do you recommend I ask for new inner tubes to be put in? Any views on heavy duty tubes?
Cheers
Corné