Tyres... and stupidity.

Air in modern tyres is surely optional.

I was flying on Tuesday and left home with 1:20 before the flight (100
miles normally fine in 1:15). On Monday evening I'd changed the rear
wheel on the K for one with an Avon Roadrider on; it was a new tyre I'd
fitted six months ago and done about 10 miles on.

As I left home it felt 'odd'. Ignored it. Got to heathrow fine but at
around 100 it was on the verge of going into a weave. I put it down to
some pirelli front, avon rear thing.

Left for home on Friday and it felt odd. Even worse it was making funny
noises. I blamed the wheel bearings.

Got home and inspect. It's hot and sticky to the touch, nicely scrubbed
in to within a few mm of the edge of the tyre. Something's not right
since I've done a 200mile motorway trip.

Check the tyre pressure in the morning... 6PSI. Ah. that'll do it.

Added some more air and it's fine. Must keep an eye on that.

 

'Course it is. Any fule kno the best thing to put in tyres is nitrogen.

You go careful on roads, PoshBoy.

 

Now wishing to appear a safety Nazi, but I'd bin it. I can't believe
200 miles of intense over-heating & the sidewalls flexing in ways they
were never meant to won't have fucked it.

I did around 3 miles a couple of days ago with a completely flat rear
tyre (& a pillion) after getting a puncture, but that was a first gear
walking pace crawl so should hopefully be ok.

 

'Not' ytc.

 

My K rear tyre definitely loses significant pressure over time (like a
couple of psi a week). I've been wondering whether it's an ill-fitting
bead, a porous rim, a slightly iffy valve or a combinaton of any/all.

 

banged this out on the bongos:

<G> Dozy bugger!

 

Last time[1] I did something similar, it very much fucked the tyre.
Looked fine from the outside[2] but totally bust up the sidewall inside.

YMMV


[1]Once on the Triple about three years back, total about 20 miles, once
in the GT about a month ago. Total unknown cos the sidewalls are so
stiff anyway.
[2]So much so that they kid at F1 was very determined that I wouldn't
need a new tyre, just a repair. Until he took it off, that is.

--
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www.cuore-sportivo.co.uk

 

I'm sure it'll be fine...

What's the worst that can happen? Well apart from the tyre letting go.

 

BTDT, first ride of the year on the R1 it felt terrible.....15psi rear

 

Well, have done two 55m commutes on it.

I'm still alive and it feels fine...

 

I rode from the Hop Farm in Kent through London to Enfield on my KTM
with pretty much 0psi in the rear - slow puncture, filled it up as
often as possible.

A bit squirrely, but nothing un-handle-able.

Much worse was the time it turned out I only had 10psi in the /front/
tyre of my 'blade - very poor handling.

 

That's only slightly further than TOG got with the duff spark plugs,
though.

 

55*m* is a bit of an oddyssey compared to TOG's famous venture.

 

More than three times as far!

 

and *back* - don't forget back.

 

Tch! everyone knows I meant miles.

 

thank you, Mr.Murray.

 

all the more reason not to look.

 

What are they, Schroedinger's tyres?

 

I never got one with those after that one massive tank-slapper riding
over some cats eyes.