Racing tyres and their road-legal derivatives: how many heat cycles would
they take before they really go off?

Some idiot didn't do his research properly and bought a pair of almost
race compound road tyres. Sportmax GP Racer D211s.

My wallet hurts.

On Sat, 04 Jun 2011 15:32:39 +0000, PipL alter ego wrote:

> My wallet hurts.

Uh, that is to say, he tells me his wallet hurts.

PipL alter ego wrote:

> Racing tyres and their road-legal derivatives: how many heat cycles
> would they take before they really go off?
>
> Some idiot didn't do his research properly and bought a pair of
> almost race compound road tyres. Sportmax GP Racer D211s.
>
> My wallet hurts.

Don't worry, they'll be illegal long before they've had enough heat
cycles to **** them.

--
Krusty

Raptor 1000 MV 750 Senna Tiger 885 Fantic Hiro 250

"PipL alter ego" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Racing tyres and their road-legal derivatives: how many heat cycles would
> they take before they really go off?
>
> Some idiot didn't do his research properly and bought a pair of almost
> race compound road tyres. Sportmax GP Racer D211s.
>
> My wallet hurts.

Have these tyres already been applied to the wheels?
If not, it might be worth ebaying them and cutting your losses
--
Alex

On Sat, 04 Jun 2011 19:06:36 +0100, Dr Zoidberg wrote:

> Have these tyres already been applied to the wheels? If not, it might be
> worth ebaying them and cutting your losses

They have. I'm going to use them; I just wanted to know whether they'll
be obviously worn out or will wear out invisibly as it were, and spit me
off.

I don't use that particular bike much on the road, so mileage isn't that
critical provided they last a couple of trackdays, or one trackday plus a
few hundred road miles.

PipL alter ego <(E-Mail Removed)> wrote:

> On Sat, 04 Jun 2011 19:06:36 +0100, Dr Zoidberg wrote:
>
> > Have these tyres already been applied to the wheels? If not, it might be
> > worth ebaying them and cutting your losses
>
> They have. I'm going to use them; I just wanted to know whether they'll
> be obviously worn out or will wear out invisibly as it were, and spit me
> off.
>
> I don't use that particular bike much on the road, so mileage isn't that
> critical provided they last a couple of trackdays, or one trackday plus a
> few hundred road miles.

If it's trackdays you want them for you've made the sensible choice. I
can't be arsed to put long lasting tyres on sports bikes but that might
be because I don't use my sports bike on motorways if I can avoid it.

The fastest I've worn out a pair of tyres on a road bike was 1,000 miles
on my old KTM 690SM and that was when I was running it in. They may have
been a bit too soft for general road use but they were great fun to ride
on.

Andy B ((E-Mail Removed)) wrote:
>
> The fastest I've worn out a pair of tyres on a road bike was 1,000
miles
> on my old KTM 690SM and that was when I was running it in. They may have
> been a bit too soft for general road use but they were great fun to ride
> on.

I had a pair of BT-090s on my RGV. 600 miles later they were ****ed.

--
ogden

gsxr1000 - the gentleman's sports-tourer
ktm duke - the practical cross-town commuter

Andy B wrote:

> PipL alter ego <(E-Mail Removed)> wrote:
>
> > On Sat, 04 Jun 2011 19:06:36 +0100, Dr Zoidberg wrote:
> >
> > > Have these tyres already been applied to the wheels? If not, it
> > > might be worth ebaying them and cutting your losses
> >
> > They have. I'm going to use them; I just wanted to know whether
> > they'll be obviously worn out or will wear out invisibly as it
> > were, and spit me off.
> >
> > I don't use that particular bike much on the road, so mileage isn't
> > that critical provided they last a couple of trackdays, or one
> > trackday plus a few hundred road miles.
>
> If it's trackdays you want them for you've made the sensible choice. I
> can't be arsed to put long lasting tyres on sports bikes but that
> might be because I don't use my sports bike on motorways if I can
> avoid it.

Agreed. You'll get a couple of trackdays at least out of D211s. When
you've fitted them be very careful about what tyre pressures you run -
DO NOT assume the pressures in the book minus 5psi will be ok. IIRC you
have to run them extremely low, like 22psi cold rear on something like
a ZX6R. Check with someone like Holbeach Tyres cos they'll know.

--
Lozzo
Versys 650 Inter-Continental Hyperbolistic Missile , CBR600F-W racebike
in the making, TS250C, RD400F (somewhere)
BMW E46 318iSE (it's a car, not one of those 2-wheeled pieces of shite
they churn out)

ogden wrote:

> Andy B ((E-Mail Removed)) wrote:
> >
> > The fastest I've worn out a pair of tyres on a road bike was 1,000
> miles
> > on my old KTM 690SM and that was when I was running it in. They may
> > have been a bit too soft for general road use but they were great
> > fun to ride on.
>
> I had a pair of BT-090s on my RGV. 600 miles later they were ****ed.

The first set of Rennsports I put on the CBR600 lasted less than that,
but they were used mostly on track with about 100 road miles.

--
Lozzo
Versys 650 Inter-Continental Hyperbolistic Missile , CBR600F-W racebike
in the making, TS250C, RD400F (somewhere)
BMW E46 318iSE (it's a car, not one of those 2-wheeled pieces of shite
they churn out)

On Sat, 04 Jun 2011 20:54:56 +0000, Lozzo wrote:

> Agreed. You'll get a couple of trackdays at least out of D211s.

I'm liking what I'm hearing.

> When
> you've fitted them be very careful about what tyre pressures you run -
> DO NOT assume the pressures in the book minus 5psi will be ok. IIRC you
> have to run them extremely low, like 22psi cold rear on something like a
> ZX6R. Check with someone like Holbeach Tyres cos they'll know.

I've seen a figure of 23 psi hot quoted on a web forum, though I'm not
sure whether that was for the race version or the 'GP Racer' road
version. Or both. The online Dunlop catalogue I looked at only gave road
pressures.