Tire ratings

Started by red baron, May 18, 2008, 08:36:49 PM

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GK

Fair enough.

These next set will only be my second set of Michelin's for the Monster.

If they go well I'll probably stick with them (no pun intended) but until recently (4 years ago) I've been a Dunlop bloke.
2001 Ducati  Monster 900S ie
JE high comp pistons, bit of porting, open airbox with DP filter, PC3 with custom map, CCW matched injectors, Termignoni cf slip ons, 14:39 gearing.

Gone but not forgotten!
Honda VFR800i, Honda CBR600F3, Honda CBX750, Norton Commando 750S, Suzuki GS750, Yamaha XT250, Kawasaki Z250, Kawasaki KX80, Honda XL250, Suzuki TC100.

koko64

If those Bridgies are cheaper, I may try them next time.
2015 Scrambler 800

koko64

I've generally felt good with Michies on the street and Dunlop at the track.
2015 Scrambler 800

koko64

#228
Can give a first impression of Pirelli MT60RS tyres on my M750, (120/70/17 & 160/60/17). Surprisingly good on paved roads with nice turn in and linear steering response on that model bike. Grip on Tarmac felt quite hi for a block type tyre without squirm. Feel quite secure with these tyres. I will report on wet weather grip when I get a chance. While not knobbies they give reasonable traction on dirt roads and evenly graded trails. They should feel better on dirt roads with the pressures dropped. They are probably classed as a 70/30-80/20% road/off road tyre. The Corsa version is used as a wet race tyre. Only been 300 miles on these tyres so I don't know how they will wear.
Update: my pillion and I rode through the local valley today and mountains at night and although at a safe pace I can report that grip at lean angles was impressive. While not a hyper sport tyre the grip felt akin to a quality sports touring tyre. I felt confident and secure from tyre feedback with significant lean angles at a moderate pace. An impressive tyre.

Another bit of useless info about these tyres is that the front 120/70/17 is almost a 75 or 80 in profile and the rear 160/60/17 is more like a 150 possibly giving some indication of their dual sport orientation.
2015 Scrambler 800

koko64

#229
Going to make the change from Michelin Pilot Power 3 to a Power RS front tyre on my M900. Now the weather is cooler and Ive loaded up the front suspension for more feel with stock fork height and 20mm + rear ride height on rebuilt forks. What is happening with the Power 3 mid corner is instability due to the soft side walls when the air pressure is less than 35psi. I checked with my tyre guy and he said that 36psi worked well and when I tested that pressure it did feel much better, but now the warm up takes too long. I run the rear Road 5 at 35psi. Hmmm, firm front and softer rear tyre pressures, anyone would think I was used to race tyres.  ;D
The Power RS reportedly has heavier side walls and softer compounds for quicker warm up and more stability with less psi . It appears I like a hard sidewall and lower pressures like a race tyre (surprise surprise), so maybe I'm a Dunlop man after all.
Another different characteristic of the Power RS front tyre is it's rounder profile with a more even turn in. I have not liked the last minute fall in of the Power 3 and my apparent under inflation has made it worse. My tyre guy said that the belts were not correctly locked into position with the lower psi I was using and the tyre would suddenly give at greater lean angles. He was correct.

Anyone got any tips?
2015 Scrambler 800

Howie

No tips, but I used to run the back  power 3 at 36-38.  Less than 34 you felt it.  Love the Bridgestone S21s on my bike.

koko64

What characteristics about the 21's you like?
2015 Scrambler 800

Howie

Quick but unlike previous sport Bridgestones, gentle turn in, stick when cold and a comfy ride. 

koko64

What pressures would you run?
2015 Scrambler 800

ducpainter

I've never run Michelin street tires at anything but 32/34.

You've already said that's not working for you.
"Once you accept that a child on the autistic spectrum experiences the world in
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 perspective
    is even more amazing than yours."
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koko64

It's not ok with the Power3 front, but I've run similar pressures to yourself with other Michelin tyres over the years. I reckon that's what threw me with this Power3. I'm actually having to run it higher (35-36) than the Road 5 rear (34-35) for stability. What Michies you running at present?
2015 Scrambler 800

ducpainter

Quote from: koko64 on April 04, 2019, 04:09:55 AM
It's not ok with the Power3 front, but I've run similar pressures to yourself with other Michelin tyres over the years. I reckon that's what threw me with this Power3. I'm actually having to run it higher (35-36) than the Road 5 rear (34-35) for stability. What Michies you running at present?
Power Slicks... :P  29/22

I've never run the new 'numbered' Powers or the Roads. Just the original Power, and some 2 CT's. I don't think you need much more than the original Power wrt traction. I also didn't see any increase in life with the 2CT's supposedly harder center.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."



Howie

I run 34-36 because of our bad roads.  Bent wheels suck >:(   

It's a Power3 thing Nate.  Real soft side walls.


ducpainter

Quote from: howie on April 04, 2019, 05:07:28 AM
I run 34-36 because of our bad roads.  Bent wheels suck >:(   

It's a Power3 thing Nate.  Real soft side walls.


Yeah, you have the city potholes to deal with but our roads, other than the highway, can't be considered anything but cart paths that have been paved...

over and over and over again.

Like I said, the original Power's, and 2 CT's, are everything I want, or need, in a tire. Many track riders use them for an all purpose dry/wet tire.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."



Speeddog

My impression on the dual-compound tires developed from previous single-compound tires, they keep the same compound in the center and use a softer one on the sides.
So cornering grip goes up and life stays ~same.

I've spent quite a lot of time on Angel GT/ST, generally they last 12k miles, I even got 20k out of an ST front.
They work fine at a reasonably quick street pace, no bad behavior.

There'd be a lot fewer tire companies around if all of the tires lasted like that.
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