Problems with inner tube rubber becoming brittle over time?

After getting a succession of 8 punctures in 8 days on an inner tube
that i bought 5 months ago and trying to work out the cause, I gave
up. I replaced it with a new inner tube and... not a puncture for 2
weeks. My suspicion lies with crap, cheap, chinese rubber used for the
inner tube that aged badly over a short lenght of time and was
wondering if anyone else has had the same problem.

Regards,
Larry

On Tue, 28 Jul 2009 13:46:32 -0700, blackhead wis temporarily glaikit then
blurted oot this wisdom:

After getting a succession of 8 punctures in 8 days on an inner tube
that i bought 5 months ago and trying to work out the cause, I gave up.
I replaced it with a new inner tube and... not a puncture for 2 weeks.
My suspicion lies with crap, cheap, chinese rubber used for the inner
tube that aged badly over a short lenght of time and was wondering if
anyone else has had the same problem.

Regards,
Larry

No punctures ever, but then I've only been cycling for 4 months. :-)
However, I wanted to throw in another related question. What do people
here think of solid Green Tyres? Are they a viable alternative to
pneumatic ones? Was just curious, and I have no affiliation with this
company -

http://www.greentyre.co.uk/



--
My dynamic calendar - http://www.1r5.net

Ian Smith wrote:
On Tue, 28 Jul 2009 13:46:32 -0700, blackhead wis temporarily glaikit then
blurted oot this wisdom:

After getting a succession of 8 punctures in 8 days on an inner tube
that i bought 5 months ago and trying to work out the cause, I gave up.
I replaced it with a new inner tube and... not a puncture for 2 weeks.
My suspicion lies with crap, cheap, chinese rubber used for the inner
tube that aged badly over a short lenght of time and was wondering if
anyone else has had the same problem.

Could be a piece of loose crap in the tyre, bad luck, or possibly the
wrong sized inner tube.

No punctures ever, but then I've only been cycling for 4 months. :-)
However, I wanted to throw in another related question. What do people
here think of solid Green Tyres? Are they a viable alternative to
pneumatic ones? Was just curious, and I have no affiliation with this
company -

http://www.greentyre.co.uk/

I bought one many years ago, I think it was from that company. It was
impossible to fit, even with the special tool. I returned to tyre to the
shop for a refund.

On 28 July, 21:46, blackhead wrote:
After getting a succession of 8 punctures in 8 days on an inner tube
that i bought 5 months ago and trying to work out the cause, I gave
up. I replaced it with a new inner tube and... not a puncture for 2
weeks. My suspicion lies with crap, cheap, chinese rubber used for the
inner tube that aged badly over a short lenght of time and was
wondering if anyone else has had the same problem.

There is almost certainly a piece of glass or a nail or a thorn stuck
in your tyre. Feel round the inside of the tyre with your finger tips.

When my little sister died I inherited her bike which hadn't been used
then for about twenty years. It's still in use now and the inner tubes
still haven't been changed so they're at least twenty eight years old.
They're fine.

On 28 July, 22:43, Ian Smith
wrote:
On Tue, 28 Jul 2009 13:46:32 -0700, blackhead wis temporarily glaikit then
blurted oot this wisdom:

No punctures ever, but then I've only been cycling for 4 months. :-)
However, I wanted to throw in another related question. What do people
here think of solid Green Tyres? Are they a viable alternative to
pneumatic ones? Was just curious, and I have no affiliation with this
company -

They don't work.

They transmit far more vibration and have far poorer road holding.
They're also solving a non-problem. If your tyres are pumped hard
enough, punctures are rare enough anyway not to be a significant
problem - I haven't had one since March, and that's about two and a
half thousand miles ago

On 28/07/2009 22:43, Ian Smith wrote:
However, I wanted to throw in another related question. What do people
here think of solid Green Tyres? Are they a viable alternative to
pneumatic ones?

I've seen a number of reviews over the years. They've been highly
polarised, all of them being either very good or very bad. Upon
investigation, the good ones have all turned out to have been written by
the manufacturers.

I've drawn the conclusion, therefore, that they're probably very bad.
In particular, it seems that your bike will rapidly end up with lots of
loose bolts.

--
Danny Colyer http://www.redpedals.co.uk
Reply address is valid, but that on my website is checked more often
“If two men on a job agree all the time, then one is useless. If they
disagree all the time, then both are useless.� - Darryl F. Zanuck

On 28 July, 23:18, Simon Brooke wrote:
On 28 July, 21:46, blackhead wrote:

After getting a succession of 8 punctures in 8 days on an inner tube
that i bought 5 months ago and trying to work out the cause, I gave
up. I replaced it with a new inner tube and... not a puncture for 2
weeks. My suspicion lies with crap, cheap, chinese rubber used for the
inner tube that aged badly over a short lenght of time and was
wondering if anyone else has had the same problem.

There is almost certainly a piece of glass or a nail or a thorn stuck
in your tyre. Feel round the inside of the tyre with your finger tips.

When my little sister died I inherited her bike which hadn't been used
then for about twenty years. It's still in use now and the inner tubes
still haven't been changed so they're at least twenty eight years old.
They're fine.

I pump mine to 120 psi

On 28 Jul 2009 21:43:10 GMT
Ian Smith wrote:

What do people here think of solid Green Tyres?

If you use a bike more than occasionally, for any sort of distance, the
disadvantages of reduced comfort and grip outweigh the advantage of
never having to inflate them. If you're particularly bothered about
punctures there are pneumatic tyres that offer very good protection
without the disadvantages of a solid tyre.

On Tue, 28 Jul 2009 13:46:32 -0700 (PDT)
blackhead wrote:

After getting a succession of 8 punctures in 8 days on an inner tube
that i bought 5 months ago and trying to work out the cause, I gave
up. I replaced it with a new inner tube and... not a puncture for 2
weeks. My suspicion lies with crap, cheap, chinese rubber used for the
inner tube that aged badly over a short lenght of time and was
wondering if anyone else has had the same problem.

Never. I wouldn't have thought that the sort of damage associated
with ageing would lead to punctures - IME ancient tubes split or become
porous, but not more susceptible to punctures. It's the tyre that
should be providing puncture protection anyway, the tube just holds the
air in. Most likely there was a problem with the tyre or rim.

On Tue, 28 Jul 2009 15:40:20 -0700 (PDT)
blackhead wrote:

I pump mine to 120 psi

Why so much?