doing my first track day on the nsr on friday
my tyres are dunlop alpha 10,s , whats the recommended pressure for these on track

I'd run them at 30psi front and rear, you wont be far off.
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thanks , is that hot or cold
i normally set the psi when the tyres are on my warmers on my r1 track bike

You want to try and achieve the 'normal' settings when the tyre are up to temp.

What I did was set them to 30 cold, then check the pressure as soon as I came off the track, and adjusted them according to the hot temp, and how they felt.

30 is a good place to start though.
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Cold, no idea what it is hot, let alone some slightly suspect tyre warmer level of heat.
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cheers ,
will set at 30 cold , and take it from there
thanks for your help

I run my NSR at 27 in the front and 28 in the rear set from cold! I find that if there is much more than that they tend to get the cold roll look on them!!

Thats in sunny New Zealand though!!!

Thats just from my limited experience though!

2.1 Bar in the front and 1.9 at the back. This is with standard size tires...15degrees C and up temp....

mike1972 wrote:doing my first track day on the nsr on friday
my tyres are dunlop alpha 10,s , whats the recommended pressure for these on track

Mike,

Talk to your dunlop rep to get a good number. if there isn't a rep at the track day, call the dunlop rep that works the local races. They will have the right numbers for the bike/tire/track/conditions.
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Charles Gallant

Wow, do you get tyre reps at track days in the states? We're lucky if we get someone there selling tyres who's got 150's in stock. We certainly don't get them at club races, Grip 'n Rip attend the DP races and sponsor F250.
You certainly aren't going to get someone here who has any idea about an NSR250 running Alpha10's, there's just one person in the UK racing that setup....me!

We did get a talk from a Dunlop technician at level 1 of the Califonia Superbike School, it was him who said start at 30 psi cold F&R so that's why I always say it.
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The clubs I have raced at here in the states have tire reps from most tire manufactures. Dunlop, Michelin, Pirelli, Bridgestone. And Ye, Ive been to track days where they are there as well, mostly track days that bump up against race weekends.

About the tire rep knowing about what pressure to use for a tire on a bike? They have a pretty good idea, even for something odd like an NSR250. Trust me, it's not like these things are some super secret motorcycle

If they don't show up at the track, you can still call them for support on their product
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Charles Gallant

30/30 always good place to start. From a motard pov (same tyres and light weight) is always started at 30/30.

Checked my pressures with warmers on/cold tyres....1 Psi difference if that.

In the end on a hot day i ran 25/25 in the end on Michelin sm race slicks.

Road tyres usually started and ended around 28-30.
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Lemon owner and lover

just to let you all know i ended up running 31psi front and rear ,
it was a bit cold , it was fantastic , big smiles all day