Tyre Pressure for Diablo Rosso II Rear

[koko64]

Well the Evo 1100 has a new hoop on the rear and its a Rosso II. Got a Rosso Corsa II on the front for that sport tyre front, sport touring rear combo.

Is it just me or do the tyres feel like I want to run them closer to track psi for grip? Ive got the rear down to 33 psi and and I often run  rear tyres around 35ish. Honestly, I feel like running more in the front and less up back like track pressures. Maybe the years of track days and racing in the past makes street pressures feel like you're riding on ice?
Whats the deal?

[DarkMonster620]

Koko, you're running different compounds, your front will heat faster than rear, and, rear is made for endurance while the front for sprinting(dunno if it makes sense), this is how the Pirelli guy that was here locally explained it at a seminar I attended. One of the things he did emphatized was to avoid doing what you did either in automobiles, motorcycles and trucks, that you want every axle on the vehicle to speak the same language. And if my mind does not play tricks on me, the Corsa and Rosso have different profile and diameter.

Personally, I usually ran my Michelin Pilot and the set on Dunlops at 32/33 city and 30/34 when on longer rides and on the demo bikes, all Pirelli equipped, when dealership, I would run the Rosso at 1psi more both fr/rr than the Michelins on the Monsters(696/796/821), Hyper(Strada and regular), and on the MTS1200 while on the Diavel I used the Michelin settings so it would not feel "loose"

Never raced, but, and I accept I might be one with the less experience here, but, I learned fast by testing different settings on few things.

Be advised, I am writing this at 0500h while waiting on coffee to kick in

[koko64]

Thanks mate.
I have three different stove top cafeterias and a dripulator at home☕️☕️☕️☕️☕️☕️☕️☕️☕️☕️ðŸ˜,

So you reckon I can get away with 32-33/33-35 Fr/R?

[DarkMonster620]

Could since Corsa heats up faster

[ducpainter]

32/34 will work.

[koko64]

Thanks fellas.
For me, Pirelli's for the street are a recent thing.

[Charlie98]

32/34 will work.

I think that's what I run my Rosso II/III's at, that or 33/35.  I used to run them at something like 37/40... didn't do that for very long, I let the air out as soon as I pulled the seat cover out of my rear.

[koko64]

I reckon that as the racing tech filters down to street tyres the side wall construction is becoming stronger and lower pressures tolerated. The Michelin Pilot Pures and Power3's were an exception. Dunlop started this trend.

[ducpainter]

Michelin has always had a very soft sidewall, and still not needed a high pressure for rim protection.

If you've ever changed tires by hand, with spoons, you'll run Michelins. Dunlop takes any remaining fun out of tire work.

[koko64]

Yes. Had to put wets on once before I could afford extra wheels. We were sweatin and cursin.

[koko64]

That's reassuring about pressures.
Shops quote higher pressures to cover their arses IMO, which is understandable, but touring pressures for heavier bikes appears to be a default position. I note the Diavel next to a 1500 Boulevard in my workshop and generally how light Ducatis are and how they're used.

[Speeddog]

Michelin has always had a very soft sidewall, and still not needed a high pressure for rim protection.

If you've ever changed tires by hand, with spoons, you'll run Michelins. Dunlop takes any remaining fun out of tire work.

I've got a Coats 220, which is a nice manual unit.

If I can sit a Michelin PP 2CT (or the like) rear out in the sun and get it hot, I can install it bare-handed.
Super floppy.

Customer brought in some variety of a Shinko front tire for his VFR400, which are *very* rare here.
Took half an hour to mount, I think it was made from Bakelite.
Told him he was out of his mind.

[ducpainter]

I've got a Coats 220, which is a nice manual unit.

If I can sit a Michelin PP 2CT (or the like) rear out in the sun and get it hot, I can install it bare-handed.
Super floppy.

Customer brought in some variety of a Shinko front tire for his VFR400, which are *very* rare here.
Took half an hour to mount, I think it was made from Bakelite.
Told him he was out of his mind.

Even in Eric's shop in the winter...and Eric doesn't like to spend money on heat...you can push the first side of any Michelin on by hand. We see Shinko's more often as MotoRace is a local distributor that handles them. Never any FHE.

[Charlie98]

Dunlop takes any remaining fun out of tire work.

Dunlop dirt tires are no exception, either.  Takes me almost an hour and about 4 irons to get the rear on the XR...