Author [NL] [FR] [ES] [DE] [SE] [IT] Michelin PR4 air pressure  (Read 6123 times)

0 Members and 1 Guest are viewing this topic.

  • Offline nervouswreck   us

    • Trophy Master  ‐    776
    • ****
    • Topic Author

    Offline nervouswreck

    • Trophy Master
    • ****
    • Topic Author
    • Posts: 776
    • Bike: 13 TTSE
    • City / Town: SWFL
    • Country: us
    Michelin PR4 air pressure
    on: Aug 19, 2016, 06.00 pm
    Aug 19, 2016, 06.00 pm
    Thought, for what is worth, I would share some insight on air pressure for the PR4s according to Bob Lilly.   Bob works as a salesman for Hermy's BMW/Triumph and is an Iron Butt rider (finished 5th last time).   I was there getting new Pirelli STs and was talking with Bob about tires and told him I was very dissatisfied with the PR4s due to cupping on front and rear scalloping.   He always rode a 1200GS as long as I've know, but last year he traded the GS for a Trophy SE and he claims to love it, go figure.    But anyhow when he asked what air pressure I used in the Michelin's I told him 36 front 41 rear which is what I used in the original STs.   He has a set of PR4s on his TTSE and has not suffered any cupping/scalloping however he runs 41 psi front and 43 psi rear.     

    For those who have or are getting the PR4s this may or may not make a difference for you.   I know mine starting cupping in as little as 3500 miles and I did try upping the psi to 39 on the front but apparently it was too little too late.     FYI.

  • Offline AVI.INC

    • Trophy Pro  ‐    233
    • ***
      #1

    Offline AVI.INC

    • Trophy Pro
    • ***
    • Posts: 233
    • Bike: Trophy SE
    • City / Town: Hawthorne CA.
    Re: Michelin PR4 air pressure
    Reply #1 on: Aug 19, 2016, 06.30 pm
    Aug 19, 2016, 06.30 pm
    I all ways run 40 front 42 rear  on PR4GTs and have run 42/42 and consistently get 10,000-to 15,000 with little  to no cupping till the end. :028:
    I must be going too fast for too long evey time i get back i'm younger!!

  • Offline nervouswreck   us

    • Trophy Master  ‐    776
    • ****
    • Topic Author
    • #2

    Offline nervouswreck

    • Trophy Master
    • ****
    • Topic Author
    • Posts: 776
    • Bike: 13 TTSE
    • City / Town: SWFL
    • Country: us
    Re: Michelin PR4 air pressure
    Reply #2 on: Aug 19, 2016, 08.50 pm
    Aug 19, 2016, 08.50 pm
    *Originally Posted by AVI.INC [+]
    I all ways run 40 front 42 rear  on PR4GTs and have run 42/42 and consistently get 10,000-to 15,000 with little  to no cupping till the end. :028:

    I  guess I should have specified GTs.   Good for you AVI.INC, wish I had known I might have thought more of the GTs.    I might give them another try when the Angel STs are gone.    I put up with the PR4 GTs for 12202 miles and just had to get them off.   There wasn't much left anyhow.

  • Offline AVI.INC

    • Trophy Pro  ‐    233
    • ***
      #3

    Offline AVI.INC

    • Trophy Pro
    • ***
    • Posts: 233
    • Bike: Trophy SE
    • City / Town: Hawthorne CA.
    Re: Michelin PR4 air pressure
    Reply #3 on: Aug 19, 2016, 10.01 pm
    Aug 19, 2016, 10.01 pm
    I have had very good luck with the PRO4GTs i have about 5,000 miles on them now and will be going on the Three Flags Classic  in two weeks and will change them when i get back if my luck holds out. :020:
    I must be going too fast for too long evey time i get back i'm younger!!

  • Offline davidcumbria

    • Trophy Pro  ‐    320
    • ***
      #4

    Offline davidcumbria

    • Trophy Pro
    • ***
    • Posts: 320
    • Bike: Blue SE 2014
    • City / Town: South Lakes
    Re: Michelin PR4 air pressure
    Reply #4 on: Aug 20, 2016, 09.09 am
    Aug 20, 2016, 09.09 am
    Sorry please explain what this cupping looks like. I have found running the front at 38 versus 36 helps cornering particularly when setting off cold.

  • Offline johnbut   gb

    • Trophy Pro  ‐    220
    • ***
      #5

    Offline johnbut

    • Trophy Pro
    • ***
    • Posts: 220
    • Bike: triumph trophy
    • City / Town: East Yorkshire
    • Country: gb
    Re: Michelin PR4 air pressure
    Reply #5 on: Aug 20, 2016, 10.03 am
    Aug 20, 2016, 10.03 am
    Do you increase tyre pressure when carrying a passenger and luggage or stick to the recommended pressures?

  • Offline PhilInAthens   us

    • Trophy Pro  ‐    307
    • ***
      #6

    Offline PhilInAthens

    • Trophy Pro
    • ***
    • Posts: 307
    • Bike: '14 Triumph Trophy
    • City / Town: Athens, GA
    • Country: us
    Re: Michelin PR4 air pressure
    Reply #6 on: Aug 20, 2016, 03.04 pm
    Aug 20, 2016, 03.04 pm
    PR4s command 38 front; 42 rear.  Handling is spot on.  4,000 miles on the current set and no wear is apparent.  Nice!

  • Offline azccj

    • Trophy Pro  ‐    121
    • ***
      #7

    Offline azccj

    • Trophy Pro
    • ***
    • Posts: 121
    • Bike: Trophy SE
    • City / Town: Glendale, AZ
    Re: Michelin PR4 air pressure
    Reply #7 on: Aug 21, 2016, 08.34 am
    Aug 21, 2016, 08.34 am
    I have PR4GTs on my Trophy and I'm very impressed with how well the rear has worn in 11,000 miles. I believe I will get about 15,000 miles out of the rear. The front is another matter though. It has plenty of tread left but it does have a strange cupping pattern in 11,000 miles. :187: I run slightly higher tire pressures, front 39 psi and rear 45 psi, than Triumph's recommended pressure.
    Current Bikes
    2013 Triumph Trophy SE
    2013 Burgman 650
    2005 BMW K1200LT
    2004 BMW R1150RT

     



    tweedy-bunch