Anyone Running and Having Problems With Michelin Pilot Road 4's?

[Woodsy]

Good morning!

I am currently running a set of Michelin Pilot Road 4 series tires on my 2017 SE with about 9,000 miles on them since October 2018. 

The front tire is cupping badly and I noticed the same on the rear.  I run the tires at sidewall pressure, checked when cold...but notice that they run 4-6 pounds higher when at speed and in hot temps.  Moderate temps they run 2-3 pounds higher.

Should I be running these lower than sidewall suggestions?  Has anyone else had issues with this?  Any suggestions on a better tire than the PR4's?  I have heard noting but rave reviews about them!  I have never been a hard rider and get 10-15 miles or more out of the tires on my Harley.

Thanks all!

[atrophy]

I get about 10,000 from Pilot Roads.  Still some tread left, but my days are over riding them until bald.
I run 38 to 40 on the front and 42 rear.  The pressure does increase 4 to 8 lbs depending on speed and heat.  100 degree days will see the higher numbers.
Triumph calls for 36 front 42 rear.  I get cupping on the front at 36.
My previous bike (BMW R1200RT) also cupped front PR4's at 36 lbs.  I ran 38 lbs to reduce the problem.
YMMV

[AVI.INC]

I always get 10,000 + miles on my PR4GTs 40psi front 42psi rear and no cupping.

[GavJ]

Interesting, that's worth a try. I am getting cupping with Bridgestone T30's, running at 36 psi

[tdragger]

Mark, I would first make sure that you are running the PR4 GT as that makes a big difference.

I just mounted a new PR4GT that I hope will last me through the IBR.  I do not have a back up plan at the moment if it does not.  I like to have the cold psi set to 40 and, yes, it will rise as they heat up but they are designed for that.

[earthman]

I don't think that you can stop tyres cupping/squaring off period especially on big heavyweight bikes, it's just something that's going to happen unless you happen to live/ride in an area that doesn't have straight roads.

I don't know about running pressures other than what Triumph state, if you try and ride conservatively (some of the time at least) then 10,000 miles seems to be about right. 

[HACKLE]

Woodsy. Regarding your query. I'm on my second set of PR4 GT's on my Trophy. I found the first set cupped a bit towards the end of their life [15,408 kms] The second set I'm running 38 PSI front and 44 PSI rear. Just to see if this improves tyre life and reduces the tendency to cup. At present I have 10,800 kms. on them. No cupping at present.
 With tyres set at cold they should heat up, after about 10 kms., by about 4-5 PSI. Any more, means the starting pressure was too low [over heating]. Any less, means the starting pressure was too high [not heating up enough]. I hope I haven't confused the issue. Cheers.

[Stoney]

I've only had 1 set of the PR4 GTs, and they were ok, although the front tire cupped, as all of my other tires have.  I got about 10,000 miles out of them, but I get 11-13,000 out of the Pirelli Angel GT A-specs.  I thought that the Michelins felt a bit 'squishy' compared with the Pirellis.  My new set is the Dunlop Roadsmart III, with only 2,000 miles on them so far.  Very happy with the handling, but we'll see about the mileage.