Z rated Diablos
 

What's the latest on them?

I've had to buy a set locally to do a pre-season trackday at Brands. Unfortunately my local supplier could not get hold of H rated Diablos. Some kind of global shortage if I understood it well.

Will I a be able to race on them or will I have to replace them before the first race?

H rated Diablos only this season, I understand the final version of the rules (out any time now) will not include the Rossos that were included in the provisional rules based on what we were led to believe by various Pirelli suppliers.
Most of the DDers I have talked to have all seemed to Source H rated tyres without any problems

Have just replied by e-mail.

Sounds like I better learn how to change tyres :lol:

Its not hard once you have a bead breaker, a set of levers, some rim protectors, valve extractor and a nice big compressor with tyre inflator :)

does that mean you are bringing wheels and tyres over for dinner tonite:lol:

Bugger, you saw it coming... :lol:

Lucky you I don't have any H rated just yet :)

Just noticed my new DD bike is fitted with ZR rated diablos.

Will I have to buy new ones? gutted if so because there’s plenty of life left. This bike has been raced as is, is this an area that's strictly adhered too?

I used Z rated ones for a few meetings - just don't tell anyone....... !

Whoops............and that bike was raced at Donny ........

We can only use H rated Diablos Rob :)

You know what, I would be slightly gutted if you were allowed to race on Z rated rubbers :lol:
Nothing personal mate, just that the rules should apply to all in the same way... :)

For the little story, somebody called the New Era scrutineering people before the Donington round, asking them to check my bike's tyres and to fail it if it was wearing Z rated tyres. Which it was at the time (as openly disclosed in this thread...), but legal tyres had already been booked with Holbeach and were on their way. I would have just hoped that trust prevailed. I can be so naive sometimes... ;)

So to cut a long story short, do not be surprised if only your bike gets its tyres checked at the next meeting... (that won't be because of me though :D )

I was told beforehand that I would not score points on Z rated tyres and that I could even be excluded from the meeting.

You have to love club racing... :lol:

Ouch, best put my hand in my pocket. Recon it's daft racing with a speed-limited tyre but hay ho don’t want to open any old debates.

Don't know when the bike was last raced, could have been last year!!!

Rob
which one is fitted with the zr's ? You could just swap the wheels over,
save you a few quid

Love it lol

Yesterday at Angelsey has totally shot my diablos :(

Just seems a shame to bin a perfectly good set of tyres, I'll be bringing the tyre changing gear to Anglesey so gives me something to do Sat day.

save them for trackdays.

for anyone contemplating olds tyres for Anglesey can i suggest against it!!

The surface is really abrasive and it hurts when your tyres give up :( :p

Just to confdirm that any bike found to be running ZR rated tyres could well find itself excluded from the meeting and not scoring any points.

ZZZ rated!! ++**!!!
 

in fact, whilst your not alowed Zd's, H rated should perform much better on our bikes, especially from cold, and especially on a cold or extra especially in the wet. the h rated will get to temp far quicker than the zd's as they are made for bikes with up to 200bhp! the H is made for bikes exactly like ours (which is I suspect why we have them) My tyres after donington don't appear to have over heated which usually leaves a slight oily in appearance shading on the tyre, if yours have then you might want to lower your pressure slightly or stop doing burnouts! :)

I think i'm right, (i'm always right) if anyone has any other words of wisdom I'd love to hear them, especially if they contradict the above!

Matt #72

p.s. holbeach tyres fitted mine, he will be at most race meetings, but I think you have to ring him first so that he brings some along. £160 fitted

Matt #72

spelling
 

i've never been able to spell, i won't change, sorry. (I do try)

I was running two bikes back to back at Anglesey on Monday and I hadn't realised that one was on ZR's until I checked after the session, the bike with ZR's did feel much better at the beginning than the H rated tyre and didn’t move at all. I know there are many other factors to take into account, but I set the rear of both bikes the same and the front wasn't far off. Note the H's had done two races at Donington, the ZR's looked older but don’t know their history.

A second scrute came over to the scrute that was looking over my bike at Donny and told him to check that mine were Hr's, same happened to Nog on the friday evening.

Must confess I would prefer to ride Z rated in DD. You can see that they are/have been working. But conversely some peeps put incredible times in on these H rated so its all in the mind.

Holbeach have a good stock of H rated at £160 a pair fitted, be sure to call before and he will bring to the meeting.

A few people who did this did not collect or go and see Mark at Donnington which could affect things at later rounds if it happens too often.

At Donnington he did have extra pairs than requested but at the end of the day as space is limited in the truck he will bring either pre ordered or tyres he knows he will sell on the day.

Gordon

Euro in the past 1.4*** = £1 now equal at nearly 1 to 1 - made outside UK therefore price increase - simple

Just had this note back from the supplier I bought my last tyres from only 4 weeks ago. I hope this trend doesn't continue, as I'd bet we're about the only group left who are buying this tyre. I still consider £160 as an extortionate amount to pay for a very average road tyre.


Hi Robin thanks for your purchase last time of these tyres. Yes these tyres
have gone up as we actually supplied them to you at a lose. They are now
£164.95 delivered. Hopefully these prices are competitive still??

A Z rated at racing speed on a track with a lighter bike will get more heat into it than the same Z rated on a road bike on the road. So why not make them available, as there are plenty of outlets to choose from at competitive prices.

Given this option I would bet money that very few people would elect to stay with the Hr and opt for the Zr, I certainly would use the Zr.

If you always do what you always did you will always get what you always got. So lets move on, as this tyre won't be around after this season if it makes the season duration.

Also as we HAVE to use it I think a monopoly on price is occuring, not to our advantage either.:o

Monopoly... I think your right!
I'll keep my cheap h rated supplier link to myself next time if find one!!!
£136+ free shipping not long ago :(

+ £10 postage + fitting fee if you need them before race day because you can't afford to enter saturday to scrub them in........

I'd certainly vote for a change to ZR's, their actually cheaper then the H rated now and from what I can gather price was the rational behind the original selection

Robin

The desision was based on performance not price and advice from Pirelli, we have been down this discussion road many times, the rules have been amended to the current situation and will be reviewed later in the year for next season.

Gordon

At the risk of being accused of stirring....which I'm not. Forget this season we're on Pirelli's. It's 2010 we should be looking at.

There are other options....

Has anyone else read the test reports on the new Michelins ?...

Every report I have read praises them to enth degree WET or DRY. Better than Pirelli Corsa's, Dunlop Qualifiers, and the rest....

....and because Michelin no longer have the expense of supporting MotoGP; they are cheaper than £160; as Michelin are putting their Grand Prix budget back into national and club racing

It is something that should be looked at ASAP for next season. March 2010 will be to late....again.

I don't think I really care which tyre we're on, as long as they are all the same, I'd rather not have a choice because then some people will probably pick the worst one, but if all bikes have the same tyre what does it matter if its 0.1 second faster or slower than another.

I really don't want the option of wets and slicks they don't last long and they cost alot, and gives loads of choice of different compounds, and I'd hate to pick the wrong tyre and come last, or crash!

perhaps there should be a vote for everyone and whatever the outcome thats the tyre we all use.

Mat72hew

I certainly do care which tyre I'm at ease with and so do a lot of others. We have the same now but can you get them from any outlet of your choice? No that is why the price is high.

We will have a control tyre but lets have a Z rated be it 2ct or Rosso, but lets have a riders referendum on it, rather than be told thats what your using.

A lot of others are at ease with the H rated Diablos, just as many were last year, just as Pirelli are at ease with us suing them which is why they have issued a letter of suitability for them, yet they would not issue one for the Z rated Diablo Rosso's
Obviously all the super fast lap record braking vastly experienced racers in the DD paddock know more about tyre suitability than Pirelli, after all what do Pirelli know, its not as if theire tyres get used for any other form of motorcyle racing. Maybe if they were used in WSB, WSS, BSB, BSS, IOM TT or even NGRRC Streetstocks they would have more of a clue.

Come on own up, who has crashed because they out rode the H rated Diablos, Mutley748 who raced on them at Dopnington for the first time and got down to two minute laps on his class B bike with a slipping clutch thought they were really well suited to the bike.

As for voting on tyre choice, its a little bit more complicated than that with suitability and liability unless wets and warmers are included

Last year i used part worns all season and got mine in the top 10 in the championship :)
Just wish the price was a little easier on the wallet. :(

It wouldn't suprise me if holbeach start charging £200 for a pair mid season!

Last year I could exchanged £100 for 140 Euros, now I'll get about 110
Last year a 1098R could have been had for £24k now expect to pay nearer to £30k.
Based on the exchange rates the Diablos we paid £140 for last year should be costing us around £168 this year, so Holbeach doing them at £160 is in fact a better deal than last year, its not their fault there is a recession on and we all have a little less money to spare.
Still at least Diesel is still cheaper than at one point last year and doesn't appear a factor in people driving over to Angelsey to do a trackday that probably cost more than it did last year, so they cam wear out some tyres that can barely afford

AAAGGGGHHHHH....

Lets get Geoff, Cobby, Dom, Kyle, Phil,Andy, Matt to tell us what they think of the Diablos?

Seemed to go alright?

Diesel free ... part of my job is i use the van for personal use.

Do you really think i can afford that.......:rolleyes:

We are lucky holbeach are with NE this year as THEY tried to get their nose in the thundersport paddock ............
Oh well
£136 free postage link i posted helped some out
I wont bother in future............

Here the problem:

IF everyone committed/or was required to buying tyres from supplier X, a control tyre, from a control supplier, said supplier could offer a better deal.

BUT as everyone, has a preffered supplier/sponsor/mate who they want to get tyres from it cant/wont happen.

Holbeach are offering a service just like everyone else, use them if you want, or use your own supplier, it is a free market. You don't see www.cheapandeasytyres.co.uk at the racetrack though.

Kevin

Points well made!

Chris

Point well made but with one problem, last year H rated were cheaper than ZR's this year their not. The isn't due to exchange rates or credit crunch it down to supply and demand, simple.

As for the point of Pirelli testing tires, how many 583's do you think their test pilots have slung their leg over. In my humble opinion back to back testing at Anglesey ZR's were more predictable and faster than H's, admit this was only in the dry.

Like Steve and Matt I don't have a problem racing on H's or any other tyre but would like to know come the inevitable mid to late season price hikes some contingency is being planned.