Tyres - Scrubbing in ...

You do it. I'll split the profits with you 60, 40.

 

Would maple syrup help?

 

yeah - sticky rubber is a good thing, right?

 

<fx: downloads PDF of Form 1/77>

 

That's 60 to me btw. No- 70.

 

Neither Dunlop or Bridgestone cite 'cleaning' or roughening the contact
patch as the reason for the run-in period

Aside the issue of bedding in on the rim a newly fitted tyre (certainly
there is initially a risk of the tyre moving on the rim) which wasn't
really the issue under discussion more slippery tyres; it would appear
that we are in agreement it's the heat that provides the grip or lack of
it.

Usage (or heat cycling as described in a previous post) cures and settles
the tyres component parts.

Basically: get the tyres seated on the wheel, get them hot and they're
done. Approx 40 miles and I'm happy.

 

Try removing a tyre that's just been fitted - breaking the bead is easy.
Then try again after 100 miles. The bead may seat with a bang, but it
takes a while to seal itself to the rim.

The belts, threads & rubber.

Well a hot tyre sticks better for starters, partially negating the
slipperiness of a smooth surface. But note I did say "optimum" grip. The
combination of compound, track surface & tyre temperature may well be
enough to give sufficient grip for maximum lean angle regardless of
whether the tyre's scuffed or not.

The info I gave is from the tech departments at Bridgestone & Dunlop. I
think I'll go with them on this one ;-)

 

Bryn Phillips, technical executive at Bridgestone does.

I took the issue under discussion as being the generic warnings given
when fitting new tyres. Although "scrubbing in" is the term normally
used, that's very misleading, & doesn't explain the other factors.

It's certainly the biggest factor. I'd rather crank it over on hot,
smooth tyres than well scuffed cold ones.

 

Unlike some, "The Verd" has a job which actually requires a bit of effort,
rather than merely being an opportunity to mess with Usenet at somebody
else's expense.

 

Sez you.

 

Or poor time management skills.

Which, considering I was actually working at 10:30 PM last night could
equally apply to me. Ho hum.

 

I can find plenty of ways of wasting time at work as it is, without
attempting to breach the firewall just to add one more.