Pirelli 250 Production Tyre guide

Aufitt · August 24th, 2014, 09:10 AM

Pirelli support 250 Producion racing in Australia,
This guide is handed out by the Pirelli support guys at state and national race rounds, so ive scanned it.

Pirelli Road Racing range 2013 ASBK

250 Production,
Pirelli Diablo Rosso 2
Hot pressure (off tyre warmers @80'C) -
Front- 27.5-30 psi
Rear- 26-29 psi

*I go to the higher range on the front (30psi), and the lower on the rear (26psi),
and when I use the SC1 front I go up to 31-32 psi.

Usually turn up to the track with 22psi cold it reaches these pressures/temps after 40-50 mins on the warmers. (varies depending on ambient temps)
After the race/session they always lose a bit as 250's cant maintain the heat, but get the warmers back on ASAP.

Alex · August 24th, 2014, 11:34 AM

Aufitt · August 24th, 2014, 11:46 AM

They also put cold pressures in there too for those that don't run warmers,
(near on impossible to get those accurate and come up with something that works consistently, and you'll chew tyres twice as fast.)
Front - 26-29 psi
Rear - 25-27.5 psi

Seems pretty damn high.

tooblekain · September 11th, 2014, 04:01 PM

I actually got to test out those Moto 3 tires a couple months ago at Chuckwalla (it was pretty damn hot too...like 110+ degrees ambient). We didn't have the spec sheet for pressures, but our conclusions were that starting at 27-28 cold and 30-31 hot front and 24-26 cold 28-31 hot felt good rear felt good.

So it's good to see that I was close to the spec sheet. So the spec sheet is a very good starting point. The Moto 3 tires kick ass, as for longevity, I'm not sure since I wasn't the first to try them.

I did do some geometry testing with it and found that if you do the gixxer rear shock mod where you raise the rear ride height, if you get chattering on the front end (due to no emulators installed) you can raise the forks/decrease height showing past the top triples and settle at like 25mm. It's a bandaid for it...but ideally I would go with emulators and maybe go with a thicker weight fork oil like a 15W or 20W (for the hotter days).

If you want a comparison of brands for the 250s, the Dunlop Unbeatens you run 33 hot front and rear (fresh off the warmers)

Old Lemon · September 17th, 2014, 03:38 PM

so a good non having warmer tire pressures would be 28/26 cold? I run intermediate group and have been running 27/30 cold. I guess at my pace it does not matter too much

snot · September 17th, 2014, 05:08 PM

Thanks for the info.

ninja250r81 · September 18th, 2014, 02:54 AM

I was watching 250/300 at Wakefield Park on the weekend Part of the Swann Insurance Australian FX Superbike Round 5 Wakefield Park NSW.

Superbike, Supersport, Formula Oz, Fx Pro Twins F1, Ninja FX300 and FX250.

Interesting to see what the front runners were using (BT090, DR II's), Mid pack was mixed (DR II's, tt900gp, Sportec M5), Back were something different could not pick the tread pattern (sava??) .

http://www.fxsuperbikes.com.au/

Might play around with mine on the street and see what it feels like.

Thanks for the post

ninja2007 · September 19th, 2014, 07:54 PM

Thanks for this... Pretty cool chart!

August 24th, 2014, 09:10 AM	#1
Aufitt The A Team Name: Aufitt Location: Western Australia Join Date: Aug 2012 Motorcycle(s): Z50, CB125, RZ500, MC22, R3. Posts: 394	Pirelli 250 Production Tyre guide Pirelli support 250 Producion racing in Australia, This guide is handed out by the Pirelli support guys at state and national race rounds, so ive scanned it. Pirelli Road Racing range 2013 ASBK 250 Production, Pirelli Diablo Rosso 2 Hot pressure (off tyre warmers @80'C) - Front- 27.5-30 psi Rear- 26-29 psi *I go to the higher range on the front (30psi), and the lower on the rear (26psi), and when I use the SC1 front I go up to 31-32 psi. Usually turn up to the track with 22psi cold it reaches these pressures/temps after 40-50 mins on the warmers. (varies depending on ambient temps) After the race/session they always lose a bit as 250's cant maintain the heat, but get the warmers back on ASAP.
	3 out of 3 members found this post helpful.

August 24th, 2014, 11:34 AM	#2
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	__________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

September 11th, 2014, 04:01 PM	#4
tooblekain ninjette.org sage Name: Matt Location: San Diego, CA Join Date: May 2012 Motorcycle(s): 2007 Triumph Bonneville; 2008 Ninja 250r (trackbike) Posts: 748	I actually got to test out those Moto 3 tires a couple months ago at Chuckwalla (it was pretty damn hot too...like 110+ degrees ambient). We didn't have the spec sheet for pressures, but our conclusions were that starting at 27-28 cold and 30-31 hot front and 24-26 cold 28-31 hot felt good rear felt good. So it's good to see that I was close to the spec sheet. So the spec sheet is a very good starting point. The Moto 3 tires kick ass, as for longevity, I'm not sure since I wasn't the first to try them. I did do some geometry testing with it and found that if you do the gixxer rear shock mod where you raise the rear ride height, if you get chattering on the front end (due to no emulators installed) you can raise the forks/decrease height showing past the top triples and settle at like 25mm. It's a bandaid for it...but ideally I would go with emulators and maybe go with a thicker weight fork oil like a 15W or 20W (for the hotter days). If you want a comparison of brands for the 250s, the Dunlop Unbeatens you run 33 hot front and rear (fresh off the warmers) __________________________________________________ CVMA #312SoCal TrackdaysBigHeadz RacingMotion ProFactory EffexLeatt Brace* Racetech Bell Woodcraft CFMVortexHotbodiesSurface Sun SystemsBrakingLiveWire EnergyFreegun Underwear

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August 24th, 2014, 11:46 AM	#3
Aufitt The A Team Name: Aufitt Location: Western Australia Join Date: Aug 2012 Motorcycle(s): Z50, CB125, RZ500, MC22, R3. Posts: 394	They also put cold pressures in there too for those that don't run warmers, (near on impossible to get those accurate and come up with something that works consistently, and you'll chew tyres twice as fast.) Front - 26-29 psi Rear - 25-27.5 psi Seems pretty damn high.

September 17th, 2014, 03:38 PM	#5
Old Lemon Lays er down Name: Michael Location: Maryland Join Date: Apr 2012 Motorcycle(s): 2008 Lime green Ninja 250R Posts: A lot.	so a good non having warmer tire pressures would be 28/26 cold? I run intermediate group and have been running 27/30 cold. I guess at my pace it does not matter too much

September 17th, 2014, 05:08 PM	#6
snot sammich maker Name: snot Location: West Ohio - in the kitchen Join Date: Feb 2012 Motorcycle(s): 2013 white 300, 09 KLX 250 SF, 09 thunder blue 250(traded) Posts: A lot. MOTM - Apr '15	Thanks for the info.

September 18th, 2014, 02:54 AM	#7
ninja250r81 ninjette.org guru Name: scott Location: australia Join Date: Jan 2012 Motorcycle(s): 2012 ninja 250r se Posts: 435	I was watching 250/300 at Wakefield Park on the weekend Part of the Swann Insurance Australian FX Superbike Round 5 Wakefield Park NSW. Superbike, Supersport, Formula Oz, Fx Pro Twins F1, Ninja FX300 and FX250. Interesting to see what the front runners were using (BT090, DR II's), Mid pack was mixed (DR II's, tt900gp, Sportec M5), Back were something different could not pick the tread pattern (sava??) . http://www.fxsuperbikes.com.au/ Might play around with mine on the street and see what it feels like. Thanks for the post

September 19th, 2014, 07:54 PM	#8
ninja2007 ninjette.org member Name: Zach Location: Beaufort NC Join Date: Aug 2014 Motorcycle(s): 2007 Ninja Posts: 69	Thanks for this... Pretty cool chart!