New - slippery - tyres

To be fair; the R1100/GS did have an ignition clutch/stand cut-out but mine
had been bypassed.
My next bike, an '87 K75, has a little slave-cable off the clutch-arm that
pulled up the sidestand.

 

There's someone here in Hobart that has done it and is an aus.moto'er.
John Lamp? I recall a decade ago someone admitting to doing that
within metres of the bike shop.

 

I'm not in Hobart, but I remember dropping my K100RT (would have been
in 90/91) just after leaving the shop where I had a new rear fitted.
1st gear, 2nd gear, turn right into a sidestreet to head home, a
little throttle and down she went. I was taking it easy too. I found
half a bar of soap on the road, I'm still not convinced that I didn't
hit that. It made the right side of the bike match the left side at
the time (I'd just thrown it down the road the week before).

Today, I wipe any new tyres down with Prepsol, thinners or acetone.
Quite a bit of black stuff comes off.

Al

 

GB wrote:

I've watched the 'slippery tyres' story with much interest

Yes. Me. I've posted it on ausmoto before now.

IIRC, 1987 or 1988. Harry Pyne motorcycles fitted a new rear tyre to my
VN750, their store was less than 50m from a corner, I tipped into the
corner and went sliding along my arse from about 15-20Km/hr (no major
damage - just needed a new front brake lever). There was no road surface
issue and this isn't a bike you could do big lean angles on. It was the
tyres as far as I can tell - no other reason known for it.


JL

 

Whenever I get my Tyres changed at Ringwood BM they put a sticker on the
triple clamp advising one to take things easy for the first 100kms due
to a new tyre fitted.

 

I don't know what part of my post made you think that I thought that
slippery new tyres were a myth. You just need to ride a bike with new
tyres to know that they indeed feel and behave slippery. I know
several people who have dropped their bikes within 50metres of getting
new tyres fitted. Youtube is full of good video examples of brand new
bikes being dropped right outside motorcycle shops.

Nev..

 

Just because the tyres aren't being pushed to their max potential
doens't mean they're still not performing very well. I can understand
with things like the carbon fibre brakes on F1 cars which need massive
amounts of heat (which is generated by using them at racing speeds) to
perform effectively, might be outperformed by lesser brakes made from
different components at lower temperatures, but I don't think it's very
plausible that a 'sports tyre' which is effectively made from the same
components as a 'sports touring tyre' (but with more added 'grip' and
less added 'longevity') would underperform the 'sports touring tyre' at
any speed or operating temperature.

Nev..
'08 DL1000K8

 

I don't know what part of my post made you think that I thought that
slippery new tyres were a myth. You just need to ride a bike with new
tyres to know that they indeed feel and behave slippery. I know
several people who have dropped their bikes within 50metres of getting
new tyres fitted. Youtube is full of good video examples of brand new
bikes being dropped right outside motorcycle shops.

Nev..

****************************

The one of the big black septic dropping the GXR1000 comes to mind
don't think he got much more than 25 metres from the shop

 

With one slight caveat I agree with you.

Super soft, super sports tyres tend to have very very little tread and
in very very wet conditions they can be subject to aqua planing earlier
than sports/touring tyres with more tread lines to disperse the water.


G-S

 

In aus.motorcycles on Sun, 09 Aug 2009 00:19:50 +1000

And with most riders...

If you are Ron Haslam[1] or similar maybe, I dunno most riders would
notice the difference in a blind test, especially on the road rather
than the track.

Zebee

[1] saw an article on him ages ago, he was working as a development
rider. THey had him tyre testing, sending him out on as many as 6
sets of new tyres in a session to get his verdict on them. THe last
set of the day they put the first (now scrubbed in) set back on
without telling him. His verdict? "Same as the first set, maybe
a little grippier".

 

On my blackbirds I generally used sports touring tyres, different brands
but with the same results. On one occasion I did put a set of much
stickier tyres than normal on, and the difference was very obvious.
With the stickier tyres I was scraping the fairings on the road around
hairpin bends.

Nev..
'08 DL1000K8

 

None of it actually. I didn't think you were saying that. I applied
the 'myth' label.

That was my point, and what I interpreted you to be saying. Are
people using the 'myth' (which may or may not be a myth) to
cover for bad riding.

Yes, but why. Slippery tyres, or a failure to adjust to the
characteristics of the new tyre?

Yes, but why...


GB

 

Because videos of people riding away sedately are just so boring?

For about five new tyres in a row, it started raining whilst the new
tyre was being put on my bike.

Theo

 

It wouldn't take much to turn that into an argument for directing
those government farm relief funds to buying new tyres for
motorcycles, would it!


GB

 

Wow; THAT'S impressive!

The opposite of Mick Doohan's early GP500 testing when he allegedly would
pull into the pits and say "that's great". They'd change his setting
entirely and he'd pull in and say "that's great too".
Rumour has it he honed the skill a bit later on......
Clem

 

In aus.motorcycles on Mon, 10 Aug 2009 13:59:35 GMT

Isn't it!

Haslam was not a top class GP rider but the article explained why he
was a very valuable development rider. Who are just as hard to find
and possibly more valuable.

Heh. I bet it's a difficult thing to learn. It's like the difference
between doing something well and teaching it, they really are
different skills.

Zebee

 

That could be the reason for the saying "Those that can , do ; those
that can't , teach."

=================

Onya bike

Gerry

 

Just jealousy on the apprentices part .