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Michelin pilot road 2 CT

Started by fj johnnie, April 01, 2014, 09:31:07 PM

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fj johnnie

  Looking for tire pressure info. I have just installed a new Michelin Pilot Road 2CT. I previously had the same tire, and it wore in a strange pattern.
  I am wondering if any one  else has used the same tire , and what pressure seems to work best for wear?
Based on how it wore , it appears to have been under inflated. The center, harder portion became square. It looked almost raised.  The Michelin rep stated it was over inflated. Any ideas on the proper pressure for this tire?  It is on a 3.5 inch FZR wheel. 90 FJ with emulators.

FJmonkey

Ummm... What does the side of the tire indicate for pressure? Considering the FJ is a big (heavy) bike and many of us riding her are not a svelte (never again to fit in our senior year prom tux) as we used to be, somewhere close to MAX would be a good start.  :blush:
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side

fj johnnie

 Thanks Monkey. I am looking for input from someone with experience with this tire.  I am capable of reading the sidewall. Just wondering what others have found with this particular tire. I have received conflicting advice from " experts" but want advice from FJ riders .

FJmonkey

Quote from: fj johnnie on April 01, 2014, 09:46:21 PM
Thanks Monkey. I am looking for input from someone with experience with this tire.  I am capable of reading the sidewall. Just wondering what others have found with this particular tire. I have received conflicting advice from " experts" but want advice from FJ riders .

Oh, never mind.... As you were solders.... Answer the man's question....
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side

Flynt

Quote from: fj johnnie on April 01, 2014, 09:31:07 PM
  Looking for tire pressure info.

Recent experience with Dunlop rep...  she said all modern MC tires should be run at sidewall max pressure.  I've been doing it on my Dunlop RoadSmarts (on FJ) and my Michelin PR3's (different bike) and have not experienced any reduced traction like you might expect (I did anyway).  So far the wear on both sets of tires has been very uniform with no weird wear pattern.

I think my PR3's are 42psi front and rear.  Maybe try sidewall max and see what you get?

Frank

BTW - I had 2CT's on a K1200S BMW and hated them.  They were by far the most slip prone tires I've had and I still have a torn out toe on a nice set of boots from one of the more dramatic rear slides...  had to get my foot down to keep the bike up.
There's plenty of time for sleep in the grave...

roverfj1200

Front 42 and rear 42 or 45 two up. Lower pressures will make the front scallop out and the rear flat spot.

Higher pressures help with longevity as well but can make the tire fell unsure in the wet. The roads here in Australia are different to the US but on the FJ it pays to keep the pressure on the high side.

Cheers.
1988 FJ1200
1991 FJ1200

Richard.

fj johnnie

 Thanks guys. It appears as though I need to increase the pressure. I went to 40 cold. The dealer who changed the tire for me set it at 34. We will see. The first one I had lasted around 12,000 kilometers. It would have gone longer had the odd squared off center  not appeared. It was no longer confidence inspiring to say the least.

andyoutandabout

The manual that came with my 86 Fj says 36 front, 42 rear. I always run them round about this as I find it makes a big difference if the pressure drops off by 5lbs or so. I've never gone more than 36 front, but I can't see that running 40 would put too much strain - just looked at the side wall of my pilot 3s and they say max load 42lbs (front) and also 42psi on the rear as a max (both cold).
My rational for being a little under is that I live at sea level and will sometimes go up to Tahoe at 8000ft, figured if my sunscreen and shower gel pop their tops, my tires might do the same. This however maybe incorrect thinking - i'm sure there's a safety factor built into those max pressure figures - no idea what that would be though.
Anyone???
Andy
life without a bike is just life

Capn Ron

Quote from: andyoutandabout on April 02, 2014, 10:42:15 PM
The manual that came with my 86 Fj says 36 front, 42 rear. I always run them round about this as I find it makes a big difference if the pressure drops off by 5lbs or so. I've never gone more than 36 front, but I can't see that running 40 would put too much strain - just looked at the side wall of my pilot 3s and they say max load 42lbs (front) and also 42psi on the rear as a max (both cold).
My rational for being a little under is that I live at sea level and will sometimes go up to Tahoe at 8000ft, figured if my sunscreen and shower gel pop their tops, my tires might do the same. This however maybe incorrect thinking - i'm sure there's a safety factor built into those max pressure figures - no idea what that would be though.
Anyone???
Andy


When I was a motor head in high school, I read it was a safety factor of 2x on tire pressures.  That always stuck in my head and have little worry running certain vehicles at max sidewall pressure.  One of my cars, I run at 50 PSI...on the other end of the spectrum, my rock crawler tires are inflated to 6 PSI.  Each is perfect for its application.

Cap'n Ron. . .
Cap'n Ron. . .


There are two types of people in the world...Those who put people into categories...and those who don't.

Firehawk068

I have PR2s front and rear. I run 42 psi in both of them.. :good:
Alan H.
Denver, CO
'90 FJ1200

yamaha fj rider

In my experience with street riding on a motorcycle, better to be a little over inflated than under inflated. Hope this helps.

Kurt
93 FJ1200
FJ 09
YZ250X I still love 2 strokes
Tenere 700
FJR1300ES