I Feel Lonely At The Moment.

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Hey thanks...with the lower end of the air pressure is there a danger the tube would be squashy and pick up nails?

Yes and no. In my experience, nails and thorns will stick in ones tyres regardless, though lower pressures may allow them to penetrate the tyre quicker... Maybe the thinnest of thorns would be less likely to penetrate...

Anyway. My experience... (I have only recently changed to useing these) is that tyres with a puncture protective belt do offer the potential to ward off most thorns and the odd nail or tack but only if one stops in time to take the nail or tack out before it goes in too deep.

I have fitted bikes with other puncture protective methods, such as "Tuff tape" and tyre slime. Both methods do work but do also have drawbacks.
Tuff tape has to have the edges files thin at the ends of the tape. Failure to do this will actually cause punctures as the tube wears at these edges.
Tyre slime. I have mixed feelings and because of this I have held back a bit from personally using it on my own bikes. Negatives is if it does puncture, it is very difficult to patch as the slime prevents the patches from sticking. The second negative though it shows how well it works(!) is that when I have come to change tyres for customers as the old ones have worn out, it usually means changing the tubes as well, because any thorns in the tyre the slime has sealed around them... So when I remove the tyre these thorns come out of the tube and the tube ends up with many punctures where before the thorns with the slime were holding the air in just fine! So it does work! But it is not perfect. One other thing to mention is my cousins son decided to put lots of slime in his tubes (Far too much) and the slime bunged up his valves so he ended up not being able to keep his tyres pumped up, and not being able to remove his tyres until they finally went almost flat!
But tyre slime does work for smaller thorns.
But my first choice are tyres with a kevlar belt built in.

Never be tempted to use those tyres which are like a solid foam so are puncture proof. They rattle wheels apart and give a very poor ride! It also takes two or three strong people to fit the things. Trust me. I used to fit them!

What are your thoughts about the solid rubber inner tubes ?

My cousins used to live on a farm and they use milking machine tubes inside their tyres. It was ok for riding about on the farm but on the road or going distances they were not great.
The main issue with solid or partly solid tyres (Ones that don't contain air) is the way they squish when riding at angles round corners as an air based tyre squishes to maintain a flat surface of grip. The more solid or part solid designs tend to not do this so effectively and so when banking one does not get much grip. (They can make them grip better but they then don't last long as they tend to be more foamy which tears to shreds in normal use. Nothing really has been as good as a pnematic tyre).

yeah the thought of using solid tubes sounds painful in terms of suspension/support you would feel every bump

Very handy to have bicycle professional on this site,, thank you for info on tyres.

Greentyre used to make foamy rubber puncture-proof tires that rode more softly.

flubber?

very weak flubber. just bounces a tiny bit.

Can’t ride a bike.
Would like to get an adult tricycle.

i can tell you about them, i used to own a few. there are two kinds- the upright kind, and the recumbent kind, each with their own issues. the upright kind can be tipsy on uneven ground and so caution is needed when riding them on anything but level ground. the recumbent kind tend to ride very hard over any pavement or ground that is not glass-smooth, and the lateral "hobby-horsing" over road bumps, of the cheaper models sans independent rear suspension, can wreck your lumbar and SI joint like the one i had [a Sun tri-classic recumbent] did mine. beware.

Recumbent bike users are the bane of road traffic in Australia.

don't they make 'em fly that 6' tall red flag on the back?

I’ve only seen 1 or 2 recumbent bikes in the street, as opposed to the sidewalks.

i am the only 'bent bike rider i've seen in ages. btw did you know there are semi-semi recumbents called "crank forward" designs such as those made by the Giant Bicycle Corporation?

so-called because the cranks are several inches in front of the vertical rider axis, IOW the pedaling is forwards by several inches, compared with a standard upright bike.

Lol....I would have trouble riding that thing.

I actually like recumbent bikes....but not alongside cars!