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Tyre Pressures: Road; Pirelli Dragon Supercorsa Pros?

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Wabby
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PostPosted: 09:46 - 21 Mar 2010    Post subject: Tyre Pressures: Road; Pirelli Dragon Supercorsa Pros? Reply with quote

Anybody have a base setting for these?

Slapped some race scrubs on me 400 yesterday and just want a starting point for pressures front and rear?
Fast road riding only. (But nothing like track pace Wink )

Cheers Smile
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iooi
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PostPosted: 09:56 - 21 Mar 2010    Post subject: Reply with quote

Tried the Pirelli site for what they recomend.

A quick google brings up any thing from 31F - 31R to 29F - 25R
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G
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PostPosted: 11:04 - 21 Mar 2010    Post subject: Reply with quote

Those settings are what would normally be used for track work - generally the desired temperature is 35 degrees when hot.
On the road I tend to go for 35 when cold - this should aid warm up a little.
However, I wouldn't trust that as right as that's what I tend to go for, for all tyres Smile.

As I've mentioned before - the first time I got a 4th place racing (which is my best finish) half way through the race I realised my tyres were still at over 50psi and I still did ok, so you've got to be more on the limit than I was then for it to REALLY matter Smile.
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and
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PostPosted: 11:53 - 21 Mar 2010    Post subject: Reply with quote

...

Last edited by and on 19:30 - 23 May 2010; edited 1 time in total
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ms51ves3
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PostPosted: 11:59 - 21 Mar 2010    Post subject: Reply with quote

ulthar wrote:
Are the tyre pressures not embossed on the tyre side walls?


That's usually the maximum pressure the tyres can be inflated to (I think).
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neatbik
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PostPosted: 12:08 - 21 Mar 2010    Post subject: Reply with quote

Try 32 psi front/36 psi back and see how it feels. Thumbs Up
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MarJay
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PostPosted: 12:14 - 21 Mar 2010    Post subject: Reply with quote

ulthar wrote:
Are the tyre pressures not embossed on the tyre side walls?
As Ste said, thats a maximum.

You haven't inflated your tyres to that value have you? Laughing
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ms51ves3
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PostPosted: 13:18 - 21 Mar 2010    Post subject: Reply with quote

beatnck2 wrote:
Try 32 psi front/36 psi back and see how it feels. Thumbs Up


That's what I run in my BT45s on my TZR. Feels nice.
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lonner
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PostPosted: 15:53 - 21 Mar 2010    Post subject: Reply with quote

im a great believer in oe pressures for road use.

and as your running race scrubs you gonna struggle to get enough heat in em so there more likely to give you a big moment.

strange thing i found with my sp2 and super sticky boots running 4-5 psi less was awful and the bike was all squirmy and lacked feel on the road but with oe pressure it was spot on.

id try oe for starters and let them down a couple of psi at a time Smile


super sticky track tyres are not much good on the road as the heat that racing generates is what makes them work.


Last edited by lonner on 15:56 - 21 Mar 2010; edited 1 time in total
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chris-red
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PostPosted: 15:56 - 21 Mar 2010    Post subject: Reply with quote

I run 34/36 on the S4 (BT016's) and 36/42 on the TDM (Pirelli Stradas)
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c-m
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PostPosted: 16:34 - 21 Mar 2010    Post subject: Reply with quote

lonner wrote:

super sticky track tyres are not much good on the road as the heat that racing generates is what makes them work.



Its interesting you say that as there are loads of people would say that race scrubs offer more grip when cold than a sports touring tyre does at ideal temperatures.

I think G on these boards is one of them.
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lonner
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PostPosted: 19:32 - 21 Mar 2010    Post subject: Reply with quote

c-m wrote:
lonner wrote:

super sticky track tyres are not much good on the road as the heat that racing generates is what makes them work.



Its interesting you say that as there are loads of people would say that race scrubs offer more grip when cold than a sports touring tyre does at ideal temperatures.

I think G on these boards is one of them.



were not talking st tyres though are we

a hyper sport tyre ie bt 016 etc is far better than a race scrub in my view
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Ste
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PostPosted: 19:35 - 21 Mar 2010    Post subject: Reply with quote

Have you used race scrubs?
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G
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PostPosted: 19:41 - 21 Mar 2010    Post subject: Reply with quote

c-m wrote:

I think G on these boards is one of them.

I am. I have tried to do 'reasearch' to some degree, push the tire's limits in adverse conditions when I've had different tyres to play with. I don't understand how people manage to find so much lack of traction with supercorsas (for pilot races it's very much the case) - personally I suspect it's often more a case of being a 'psychological' issue rather than reality.

I'd say from cold the 010 and supercorsa offer similar amounts of grip - haven't been that impressed with the 014/016 myself.

Under normal riding conditions I wouldn't get near what a Supercorsa offers on the road. They tend to slide smoothly and controllably if something bad does happen.

Doing some research into the Diablo Corsa (which is halfway between the two basically) it's interesting to see they are actually pretty close to the supercorsas.

However, as you are less likely to get the heat in them, the pressure won't go up as much, so track pressures will probably be a bit low - as cold track tyre pressures are designed for the tyres getting hotter, so being at higher pressures.
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lonner
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PostPosted: 11:11 - 22 Mar 2010    Post subject: Reply with quote

Ste wrote:
Have you used race scrubs?


if that was for me no and here's why.

https://www.sportrider.com/tech/tires/146_0002_street_vs_race_tires/index.html

someone like G is an experienced rider and has raced and that means he can read what a tyre is doing and deal with it far better than an average rider or a novice.

by all means try scrubs but take care on a cold damp morning Thumbs Up
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G
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PostPosted: 13:17 - 22 Mar 2010    Post subject: Reply with quote

First off, I should clarify that personally if buying new I wouldn't buy race tyres for road use. That does push the 'value per mile' thing a bit too high to my mind. However, at the prices they can be got second hand and the good availability for a lot of the year means that race-scrubs can be a good choice.

Regarding the linked too article – it claims to be a 2009 article, yet is talking about rather old tyres I believe, which would make me question it generally for a start, never mind the agendas of tyre manufacturers etc. However, it's also missing the point that while race tyres tend to not be too far apart when hot, like road tyres their performance when in non-race conditions can vary massively.
As I've said, for a Pilot Race these preconceptions are absolutely correct in my experience – have to be gently warmed and don’t work well until they’re properly hot and can be lethal until then, but that’s not the same for Supercorsas that are very different.

If you’re using the Avons discussed in that article I suggest you take great care in ALL conditions, as in my experience they suck regardless of the situation Wink.

It also talks about the lack of tread causing problems in the rain – it’s very rare for a motorbike to aquaplane, as they have a very small contact patch anyway. In my experience it’s more likely for the tyre to just not have enough grip.
Tread is useful for warming a tyre up – it lets the rubber move more. I believe this is one of the reasons for ‘block pattern’ wets which don’t seem to move more water, but they should let the rubber flex a lot more, which gets it up to temperature better.

On the road I hope not to put to use the little skills I have for ‘feel’ as far as when a tyre is going to let go etc – I’m actually quite sceptical about a lot of ‘feel’ that some people describe - possibly being paranoia more than anything else Smile. Anyway, I hope not to be in a situation where the tyres going to let go because I try not to intentionally get near those limits too much Smile, however I still want a tyre that offers very good grip in all conditions and is as smooth and controllable as possible when it doesn’t have it.

Yes, race tyres do tend to make a bike turn a bit faster, but then this is something people pretty regularly try and achieve on their sports bikes regardless of tyres.
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evoboy
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PostPosted: 13:46 - 22 Mar 2010    Post subject: Reply with quote

Tend to use 36f/42r on all my road tyres on the zx6, never had a problem with warm up (nice and quick), grip levels or blistering.

For track work i drop the pressures to 32f/30r.

In the x7 i run 32f/36r.
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