Hi Guys
Are any of you running slicks on your bikes ?
What slicks can be bought in the right size for the NSR`s
The bloke at out bike shop said there arn`t any slicks to fit and the best tire to run are the gpr10`s i had them on at the last track day i did and found them a bit loose under brakes would like that bit of extra grip.
I need every bit i can get to beat the 400`s i have to race against.

Slicks aren't always the grippiest way to go unless you're UBER fast. Road legal, treaded race tyres like Metzeler Racetecs for example get warm quicker and stay warm easier because of the extra surface movement (and subsequent heat generated by internal friction) allowed by the grooves of the tread pattern. It is for this reason that many racers cut their own grooves into their slicks with a special tool to combat cooler track surface temperatures like what you'd get in spring, autumn or in England.

I'm pretty sure Racetecs come in a 150 section rear and 110 section front and they certainly don't lack grip - i'm considering a set of these myself. My only worry is that tyres like that are designed for use on 600s and the like which are much heavier than an NSR (particularly a stripped down race version) and therefore won't work as well as they might on a 190+kg machine.
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Alpha 10's?
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D209 GP Racers.. awesome tyres...
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Yes, they are definitly the ones to go with Paul, got em on all three of my bikes. Make sure you keep to the standard size 150 &110 , no need to go oversize.
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Alpha10's (or GRP70's which is the tyre that pre-dates the Alpha10) are the traditional choice for the 250, along with Andy's favorite the Bridgestone BT090

But without doubt the best (treaded) tyres available(ish) in 250 sizes once they're warm are Pirelli Diablo Supercorsa's. They're HUGE money now over here (£350 a set full retail) but on track they'll give better feedback, be faster and out last 2 or 3 sets of BT090's or Dunlop Alpha10's.
You really do get what you pay for.
Pirelli Supercorsa Pro's are also available in 110 and 150 sizes...they're similarly good, slightly cheaper and a ton better in the wet, there's a set on my racebike (in 120 and 160 sizes) now that hold the Croft lap record*

But a 3.5" front and a 5" (or 5.25") rear will let you run slicks or inters or whatever you fancy.

*not set on my racebike or by me
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Last edited by fontyyy on Mon May 31, 2010 8:22 pm; edited 2 times in total

Lesviffer750 wrote:Yes, they are definitly the ones to go with Paul, got em on all three of my bikes. Make sure you keep to the standard size 150 &110 , no need to go oversize.

Love mine.. loads of confidence..

Sprocket did the job just fine too mate, thanks for that
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Does anyone else endorse the Bridgestone BT090s??
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Worst tyres I've ever had the misfortune to ride on... others love them.

Very subjective topic, tyres!
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Really? I might give them a miss then. This tyre choice lark is becoming more of a drama than i thought; i've got Michelin Pilot Race tyres on at the moment which i fitted in 2005 or 6. At 30 psi front and rear i was getting little slips and slides so i dropped to 24psi and that seemed to sort the grip problem but i still get cold tearing on the outer edges of the tyres from cornering and i struggle to trust them to be honest.

I need a MINT track tyre in 120/60 and 150/60 sizes that works well at (shall we say) less than lap record pace. I think my problem stems from A, having a very light weight machine and B, not being a fast enough rider.
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Getting tyres in the right sizes seams very hard seams racetecs don`t come in right size.
i haven`t found any available in the right size

Personally, I've never found the limit of either 090s, a10s or D209GPs in the dry. And suspect that you'd have to be national championship material to do so... I just buy whichever of those I can source the cheapest. Most of the stuff people spout about tyres is a bit questionable it seems to me as there are so many other factors at work than just the tyre itsef. And 'bad experiences' are often down to folks not setting pressures right or factors external to the tyre itself (suspensiopn set-up, track conditions, paranoia etc) - or we're just looking for an excuse for being slower than we'd like to be .

On the road it hardly matters what you use really. Your tyres are never going to be a genuinely limiting factor in that environment I reckon. What you want on the road is something that will give reasonable mileage and has some feel and grip in the cold and wet too. I get less than 2000 miles out of an a-10 or D209GP rear on the road (and only for the first 1000 or so of which would you say the tyre was really working as it was designed to). 090s seem to last a little bit longer in my experience, but there's not much in it at all.

For what it's worth, 090s give me a little more confidence if it's wet (though none of these are ideal in the wet of course), but in the dry I'd take any of the tyres mentioned. In truth I doubt if I was 'blind testing' I'd be able to reliably tell you the difference as so much of this stuff seems psychological to me. I also reckon that, in general, the sun coming out does more for lap times than different tyres at our kind of level...
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Couldnt have put it better myself wb, to us mere mortals its all worry for nothing.
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