Which inner tubes

[NoBeardNoTopKnot]

To get this right... for a thicker tube to be the difference between a puncture and not, our sharp 'whatever' has to be a specific length to show advantage. Such that it'd not puncture a thick tube but would puncture a thinner cheapy.

I see.

Which leaves iffy seams etc. For the comfortable £150 difference,  I'm left to ask how compelling the logic gets. How dangerous am I living here?
I reckon at the price of Michelins, there's more chance I'll cheap-out on the number of spares I carry in routine.

For the piece of mind Michelins gives me, Alan & DW, seems we take care to drive roads with sharp 'whatevers' the right length or we're jiggered.

[island dormy]

  Hi Guys

  Going back 35 years to my trucking company days new tires with lots of thread rarely got punctures, most of the time (if you were paying attention to your rig) you simple pulled the offending screw or small short nail out of the rubber before it worked its way through.

  At that time radial truck tires were becoming popular and the most important part was "you had to use a radial tube" in a radial tire, the radial tubes were designed so that the rough inner surface of a radial tire would not rub through the tube.

  Nowadays I have no clue if they make radial and non-radial tubes but they still might.

  Victor

https://firestonetubes.com/policies-and-forms/page/1/tube-safety#:~:text=Only%20RADIAL%20tubes%20and%20RADIAL,or%20flap%20in%20ANY%20tire.

 These instructions are for larger split rims but the radial tube thing still applies.
 
 

[NoBeardNoTopKnot]

Wow, please tell more. Never heard of the like. if it wasn't there I've have you as pulling my chain.  Clearly you're not. What's the difference, done a quicky google and find nothing. How do you design a tube to not be affected by a rough tyre inner?

Have you seen such things? Please more, I like to know this stuff.

[island dormy]

  Hi No Beard

  Like I said this was 30 years ago and we learned the hard way when we started switching to radials (for supposed better fuel milage) a non radial tube in a radial tire would wear through and go flat in less than 2-3000 miles. We then switched to radial tubes and the problem went away.

  It might not be totally the rough surface only causing the wear through. I vaguely remember something about a radial tire flexing or squirming more that also contributed to the wear through of the non-radial tube.

  Victor

[NoBeardNoTopKnot]

I'm looking into this now. Shall keep digging