Cold psi for Dunlop GP and GPA? : Honda CBR 1000RR Motorcycle Forums: 1000RR.net

styles · 10-09-2012, 12:11 PM

Got a good deal on some take offs and was wondering what psi to set the GP and GPA's at cold? Taking them to the track on the 28th and don't have tire Warmers, probably going to take 2-3 laps to warm them up then go for it, but I'm only level 1 so...

BigDogF250 · 10-09-2012, 02:59 PM

One site that I have seen recommends 31 front 21 rear COLD for that exact tire. Probably as good a place as any to start unless you get some replies from people who have measured cold pressure on that tire (not on warmers). Warm according to the site should be 33f/23r. That's not too far off where I run my Q2's at the track, I measured once I got it home. Glad I remembered to check before running to work that Monday!

And hopefully you will take it easy until you find out if you like that pressure, I hate taking anything new to the track and the edge of performance (mine or the bike).

styles · 10-09-2012, 03:21 PM

Quote:

Originally Posted by BigDogF250

One site that I have seen recommends 31 front 21 rear COLD for that exact tire. Probably as good a place as any to start unless you get some replies from people who have measured cold pressure on that tire (not on warmers). Warm according to the site should be 33f/23r. That's not too far off where I run my Q2's at the track, I measured once I got it home. Glad I remembered to check before running to work that Monday!

And hopefully you will take it easy until you find out if you like that pressure, I hate taking anything new to the track and the edge of performance (mine or the bike).

Thanks for the input!
Yeah im going to take my first sessions and see what temps work for me...

**Bosarge22** · 10-09-2012, 03:58 PM

I ran these tires for last years track days, you will like them. I thought the front tire pressures they listed were very low but I ran exactly what they said and they worked great.

**SoCal23** · 10-09-2012, 04:55 PM

Dunlop GP and GPA cold set is 31F 21R.

styles · 10-09-2012, 07:14 PM

Quote:

Originally Posted by Bosarge22

I ran these tires for last years track days, you will like them. I thought the front tire pressures they listed were very low but I ran exactly what they said and they worked great.

Did u use tire Warmers? If not what psi did u set yours at?

Quote:

Originally Posted by SoCal23

Dunlop GP and GPA cold set is 31F 21R.

Has anyone tried these tires personally without Warmers? How many laps did u do before getting on it?

TheX · 10-09-2012, 07:36 PM

Check the pressures hot as soon as you get off the bike. Don't even take your gloves off first. That's the pressure that matters ON THE TRACK.

styles · 10-09-2012, 07:49 PM

Quote:

Originally Posted by TheX

Check the pressures hot as soon as you get off the bike. Don't even take your gloves off first. That's the pressure that matters ON THE TRACK.

Alright so that would be the pressure I should run when I have Warmers yeah?

TheX · 10-09-2012, 07:51 PM

Quote:

Originally Posted by styles

Alright so that would be the pressure I should run when I have Warmers yeah?

Yes sir

MKP · 10-10-2012, 10:51 PM

Those tires will get up to temp quickly. Just remember to accelerate and brake hard while upright on the first lap...gradually increasing lean angle in the turns...2nd lap, good to go!
As others said, hot psi is what matters. Check it as soon as you get off the track and remember to check it as the day warms up, you'll likely have to take out a pound or two.