Tyre condition query

Tom Anderson said:

Afternoon all,

My tyres, which are only a few months old, have bits of red stuff
visible underneath the tread:

http://www.flickr.com/photos/twic/177094432/

Is that normal? I've never noticed it before, but that might just be
because i'm not very observant.

I don't think i've mistreated the tyres: i pump them up to 60 psi,
well below their rated maximum of 80, although they probably get down
to 40-something if i've been lazy; i've commuted to work on roads
every day, done a little bit of longer-distance riding, but nothing
terribly exotic.

Looks like the tread is splitting sideways to reveal the layer underneath
(puncture protection or whatever). I wouldn't have thought it's dangerous
as long as the casing is alright and the "rubber" is as grippy as
normal... but how you could be sure of that, I don't know. (The tyre
wouldn't suddenly explode even if the tread came off completely, as long
as the casing underneath was OK).

If the bike's been stored in reasonable conditions, ie. not an oven!,
maybe you could get a refund despite the months of use, depending on where
you got them from.

~PB

Quoted message said:

My tyres, which are only a few months old, have bits of red stuff
visible underneath the tread:

http://www.flickr.com/photos/twic/177094432/

Until we see a proper photo with hobs, cupboards and some laminate flooring
it's hard to say. Looks like an overly thin outer layer of rubber has
perished, exposing some of the punctury-resistanty stuff inside, or at
least whatever the next layer down is.

They'll almost certainly be safe to ride. The worst that can happen would
be an explosive puncture when you're at speed sending you over the bars and
into the path of an oncoming road roller. Let us know if it happens so we
can change our advice to you.

p.s. you seem to work in a sciency-technically department, and yet your
photos are full of what appear to be female colleagues. How does that
work, or is it only engineering that's men-only these days?

--
Mark.

Tom Anderson said:

Afternoon all,

My tyres, which are only a few months old, have bits of red stuff
visible underneath the tread:

http://www.flickr.com/photos/twic/177094432/

Thinking more about it, the tread could split open more, leaving the
tyre much more vulnerable to puncturing and and sending you over the bars
and into the path of an oncoming road roller :-) The casing is probably
fine... at the moment.

Maybe it's a poor design and the sipes or cut-outs are too deep for the
shape.

~PB

in message <[email hidden]>, Mark
Thompson

('pleasegivegenerously@warmmail*_turn_up_the_heat_to_reply*.com') said:

p.s. you seem to work in a sciency-technically department, and yet your
photos are full of what appear to be female colleagues.  How does that
work, or is it only engineering that's men-only these days?

You clearly work in the wrong bit of technically stuff. I've been
teaching Linux to some electronics people this week, of whom 42.87% were
female, and 14.28% were £*&$*(%*^ NO CARRIER.

--
[email hidden] (Simon Brooke) http://www.jasmine.org.uk/~simon/
; gif ye hes forget our auld plane Scottis quhilk your mother lerit you,
; in tymes cuming I sall wryte to you my mind in Latin, for I am nocht
; acquyntit with your Southeron
;; Letter frae Ninian Winyet tae John Knox datit 27t October 1563

Mark Thompson said:

Quoted message said:

My tyres, which are only a few months old, have bits of red stuff
visible underneath the tread:

http://www.flickr.com/photos/twic/177094432/

Until we see a proper photo with hobs, cupboards and some laminate flooring
it's hard to say.

Bugger. We've got parquet in the kitchen.

Quoted message said:

Looks like an overly thin outer layer of rubber has perished, exposing
some of the punctury-resistanty stuff inside, or at least whatever the
next layer down is.

Sounds about right. I'm amazed that the rubber has cracked, though; i
can't imagine what's happened to it. I keep the bike outside but under
cover, so it's hardly seen extremes of temperature (there have been a few
warm days, granted, but nothing that the products of a Californian company
shouldn't be able to handle). Must be my GNARLY RIDING STYLE. And to think
people suggested i buy a road bike - i'd have destroyed it by now!

Quoted message said:

They'll almost certainly be safe to ride. The worst that can happen
would be an explosive puncture when you're at speed sending you over the
bars and into the path of an oncoming road roller. Let us know if it
happens so we can change our advice to you.

Wilco.

Quoted message said:

p.s. you seem to work in a sciency-technically department,

Cell biology.

Quoted message said:

and yet your photos are full of what appear to be female colleagues.
How does that work, or is it only engineering that's men-only these
days?

Why would i bother taking pictures of the blokes?

Actually, there aren't that many blokes - using a list of current
personnel i happen to have to hand, my institute's 61% women. And that's
not counting the admin and core service staff. Biology traditionally has
more women than the more physical sciences, but i have to admit that this
place is over the top.

Although if Simon could tell me how to get hold of hot linux chicks in
bulk, that would be useful.

tom

--
Death to all vowels! The Ministry of Truth says vowels are plus
undoublethink. Vowels are a Eurasian plot! Big Brother, leading us proles
to victory!

vernon said:

"Pete Biggs" <[email hidden]> wrote in
message news:[email hidden]...

Quoted message said:

Tom Anderson said:

My tyres, which are only a few months old, have bits of red stuff
visible underneath the tread:

http://www.flickr.com/photos/twic/177094432/

Is that normal? I've never noticed it before, but that might just be
because i'm not very observant.

Looks like the tread is splitting sideways to reveal the layer
underneath (puncture protection or whatever). I wouldn't have thought
it's dangerous as long as the casing is alright and the "rubber" is as
grippy as normal... but how you could be sure of that, I don't know.
(The tyre wouldn't suddenly explode even if the tread came off
completely, as long as the casing underneath was OK).

I'm not keen on it going any further, though - it'll end up with bits of
loose tread flapping about, at this rate in another few months, which is
not at all ideal.

Quoted message said:

I had something similar happen to two Specialized Armadillo tyres on my
Dawes Galaxy tourer.

[censored] Specialized!

I'll have a hunt for the receipt. I got them from Wiggle; i might email
them the picture and ask if they'd consider replacing them, or refunding
me my money (or, probably, taking the value in part exchange against some
new tyres - mmm Schwalbe Marathons ...). I'll probably have a better case
if i wait a couple more months, so they're visibly disintegrating despite
being <6 months old.

tom

--
Death to all vowels! The Ministry of Truth says vowels are plus
undoublethink. Vowels are a Eurasian plot! Big Brother, leading us proles
to victory!

Colossus & Bombe eh?
Man! They knew how to impress people with computer names in those days.
None of yer beige plastic there mate!
Robert

Tom Anderson said:

Is that normal? I've never noticed it before, but that might just be
because i'm not very observant.

My Specialized tyres also did that. I put loads more miles on them
without any problems. Presumably YMMV though.

Anthony

In article <[email hidden]>

Tom Anderson said:

Afternoon all,

My tyres, which are only a few months old, have bits of red stuff visible
underneath the tread:

http://www.flickr.com/photos/twic/177094432/

Is that normal? I've never noticed it before, but that might just be
because i'm not very observant.

Don't worry about it unless the tread starts to lift or you get debris
in the cracks causing punctures.

"Pete Biggs" <[email hidden]> wrote in
message news:[email hidden]...

Quoted message said:

Tom Anderson said:

Afternoon all,

My tyres, which are only a few months old, have bits of red stuff
visible underneath the tread:

http://www.flickr.com/photos/twic/177094432/

Is that normal? I've never noticed it before, but that might just be
because i'm not very observant.

Quoted message said:

Looks like the tread is splitting sideways to reveal the layer underneath
(puncture protection or whatever). I wouldn't have thought it's dangerous
as long as the casing is alright and the "rubber" is as grippy as
normal... but how you could be sure of that, I don't know. (The tyre
wouldn't suddenly explode even if the tread came off completely, as long
as the casing underneath was OK).

~PB

I had something similar happen to two Specialized Armadillo tyres on my
Dawes Galaxy tourer. The outer tread started to detach from the tyre
carcase. On both occasions it happened well before the tyre was well worn.
I now use Panaracer Pasela tyres and have enjoyed problem free rides in the
tyre department since their adoption