News:

This Forum is not for sale

 

Correct tire pressure for ducs

Started by SaltLick, May 12, 2008, 05:59:45 AM

Previous topic - Next topic

arai_speed


ICON

Pilot Power 2ct-  32/32 summer and 34/34 winter.

arai_speed

#32
Quote from: thruxton on May 14, 2008, 09:36:43 PM
that's what my suspension guru set me up with for street riding. i got no complaints with grip, compliance and mileage.

That's what I'm running now and the thing is on rails.  I think I'll try the lower pressure and see how it feels, if I don't like it I'll go back to 36/36.

Also, this is the first Monster I've owned so forgive my ignorance, but this is the first time I've heard of a lower front tire pressure then the rear tire pressure.

Since the steering is handled by the front wheel, you want that the tire in the front slightly harder to do all the tracking and steering  and the rear softer so you can get better grip/drive out of corners.

At least that's what I've run on my R1 when using Bridgestone's or Dunlops on the track.



optiato

What's the adjustment for weight generally?  Say for someone around oh 130-135 pounds... with gear.....

Augustus

After thinking about this post I decided to go halfway between the recommended range which equates to 37 psi for the front and 42 psi for the back on Stradas.  I'll see how the bike feels, since I don't take it to the track I think it will be fine.

arai_speed

So I went out this morning to the local canyons and tried the recommended tire pressure.  31pst front and 32psi rear (as listed on the frame of my bike).  The bike is on Michelin Pilot Powers.

In short, lowering the pressure caused my bike feel really bumpy.  Places that I didn't know had bumps because very apparent.  It seems that suspension was doing more work then normal so I'm not sure I dig the "recommended" PSI.

I'll be setting the pressure back to 36F/36R and take it out again and see if I'm imagining things or if indeed the lower psi had that much of an effect on the bike.

If it did have that effect, I don't like it.  Recommended or not.  [drink]

arai_speed

Quote from: arai_speed on May 18, 2008, 01:19:40 PM
So I went out this morning to the local canyons and tried the recommended tire pressure.  31pst front and 32psi rear (as listed on the frame of my bike).  The bike is on Michelin Pilot Powers.

In short, lowering the pressure caused my bike feel really bumpy.  Places that I didn't know had bumps because very apparent.  It seems that suspension was doing more work then normal so I'm not sure I dig the "recommended" PSI.

I'll be setting the pressure back to 36F/36R and take it out again and see if I'm imagining things or if indeed the lower psi had that much of an effect on the bike.

If it did have that effect, I don't like it.  Recommended or not.  [drink]

Afterwork I headed up to the local canyons to test out the bike running the higher PSI on my Pilot Powers and sure enough, all the bumpiness and cadillac suspension feelings I experienced on Sunday were all gone.

Now, I realize this may not work for all of you, but I'm at 6'1 and 215lbs so a higher pressure makes for a better ride (for me).

I'll be sticking to 36/36  [moto]

uclabiker06

QuoteTire life isn't optimal, but traction is.

+1.  I would rather have the confidence that comes from the extra grip and the extra cost of changing out my tire  a bit earlier.  In his book "Smooth Riding" Reg Pridemore recommends 32psi for front and back for all tires on the street.  I don't weigh much so I run 34/33 and it works out fine. 

QuotePilot Power 2ct-  32/32 summer and 34/34 winter.

Why would you run a lower PSI in the summer?
Life is never ours to keep, we borrow it and then we have to give it back.
2006 S2R
2009 Smart

Slide Panda

The theory being that the tires will get hotter in the summer and raise the internal pressure.  In the winter it's pretty hard to get any rear heat in the tires (if you have a winter)

Next time you go for a ride on a warm day - bring a tire guage with you.  Take your pessure when the tires are cold, and then right after you finish up some twistys.  You'll find the pressures gone up a few psi.
-Throttle's on the right, so are the brakes.  Good luck.
- '00 M900S with all the farkles
- '08 KTM 690 StupidMoto
- '07 Triumph 675 Track bike.

uclabiker06

In the summer the pavement is hotter and the tires get hotter resulting in better grip.  If anything you would need less PSI in the winter to get better grip.
Life is never ours to keep, we borrow it and then we have to give it back.
2006 S2R
2009 Smart

Wanwo

Quote from: 64duc on May 15, 2008, 10:44:44 AMHandy little converter. Convert almost anything.

http://joshmadison.com/article/convert-for-windows

Just what I needed.

My manual quotes tire pressure in bar and kg/cm2

The tire wall has it in psi

I went to the garage yesterday and the guy's pressure gauge is in KPa! :o

Major Slow

Quote from: optiato on May 15, 2008, 01:37:19 PM
What's the adjustment for weight generally?  Say for someone around oh 130-135 pounds... with gear.....

I'd say about 160 big macs [bacon]
You cannot argue with crazy because crazy is not willing to be convinced. Hell, it's not even willing to listen to the arguments.

EEL

So long as the tire pressure is not higher than the maximum listed on the sidewall and no so low that the tire folds in on itself, you're fine. Nuff said. OEM recommendations are for the following

1) OEM Tires
2) To cover the company from getting sued for safety violations. Thats it

LA

I have found the recommended pressures to be perfect too. 32/30

The Pilot powers will run fairly well with far less pressure though. I rode home some 20 mi. with about 5 psi on two days last week due to punctures.

If you're going to defer to anyone, it makes sense to defer to the manufacturer.

LA
"I'm leaving this one totally stock" - Full Termi kit, Ohlins damper, Pazzo levers, lane splitters, 520 quick change 14/43 gears, DP gold press plate w/open cover, Ductile iron rotors w/cp211 pads.

R90S (hot rod), 80-900SS, Norton 850 MkIII, S4RS