Author Topic: I'm Tired of Tyres  (Read 9916 times)

Online Williamson

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I'm Tired of Tyres
« on: October 26, 2017, 10:46:14 PM »
Must be an improved version, because so many people have had bad experiences that they call them "Dunflops".
I know the Michelin PR4GTs on the ST1300 are fantastic, so if the Dunlops are better I need to try them.
I test-rode the black ST1300 for a mate the other day and almost ran over the first roundabout, being used to my ST loving the lean and flick. They were original Bridgestones with 7500 (and the front with only 1000 kays left on it).  It's a 2010 bike, so they will have gone hard.  Horrible feeling!

The PR4 GT rear has let me down.  Only around 15k and it's shot, kaput, kangaroo edward (rooted), booked in to Bairnsdale (on the way home from Wooli) AM tomorrow for a newby.  Noticed that it's badly scalloped, with lots of wear in the centre and RHS, been worried since Orbost.

This will be rear tyre no. 4 with only 35k on the the 2011 (bought new in 2013) ST1300.

Running it at 44psi, perhaps I'll try 46psi ........ or more, or ride a bit slower.

Cheers,  Williamson (AKA Michael)

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Online Williamson

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Re: I'm Tired of Tyres
« Reply #1 on: October 26, 2017, 10:49:42 PM »
Must be an improved version, because so many people have had bad experiences that they call them "Dunflops".
I know the Michelin PR4GTs on the ST1300 are fantastic, so if the Dunlops are better I need to try them.
I test-rode the black ST1300 for a mate the other day and almost ran over the first roundabout, being used to my ST loving the lean and flick. They were original Bridgestones with 7500 (and the front with only 1000 kays left on it).  It's a 2010 bike, so they will have gone hard.  Horrible feeling!

The PR4 GT rear has let me down.  Only around 15k and it's shot, kaput, kangaroo edward (rooted), booked in to Bairnsdale (on the way home from Wooli) AM tomorrow for a newby.  Noticed that it's badly scalloped, with lots of wear in the centre and RHS, been worried since Orbost.

This will be rear tyre no. 4 with only 35k on the the 2011 (bought new in 2013) ST1300.

Running it at 44psi, perhaps I'll try 46psi ........ or more, or ride a bit slower.

No!  I won't ride slower.
Cheers,  Williamson (AKA Michael)

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Offline Biggles

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Re: I'm Tired of Tyres
« Reply #2 on: October 26, 2017, 11:09:21 PM »
Or try 42 psi (290 kPa).  Works for me! Front and back.  Never had one fail before it wore to the wear bars.
But then I only weight 74 kg...    :whistle
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Offline DavidP

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Re: I'm Tired of Tyres
« Reply #3 on: October 27, 2017, 06:52:43 AM »
Wow , that isn't long... over 20k on mine, and starting to scallop (44psi usually, bit more in rear 2 up).  Only weigh 84kg, but we were >550kg all up to/from Nat rally, and lots of twisties (worn to 1cm from edge)  Think another 5k still left in the with my normal highway commute. 

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Offline alans1100

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Re: I'm Tired of Tyres
« Reply #4 on: October 27, 2017, 08:35:08 AM »
I'd be happy if I got 15k out of a rear; usually anything between 8 and 10k and running at 44/45 psi and mostly two up riding.
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Online Williamson

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Re: I'm Tired of Tyres
« Reply #5 on: October 27, 2017, 04:01:12 PM »
Dunlop Roadsmart 2 fitted at Bairnsdale.  An enjoyable ride home, not worrying about the old PR4 making it.  Not sure if there were many more km left in the old girl.




« Last Edit: October 27, 2017, 04:35:56 PM by Williamson »
Cheers,  Williamson (AKA Michael)

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Online Jdbiker

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Re: I'm Tired of Tyres
« Reply #6 on: October 27, 2017, 04:38:15 PM »
Looks like symptoms of over inflation Sir Michael 🤓
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Re: I'm Tired of Tyres
« Reply #7 on: October 27, 2017, 04:44:36 PM »
I’ll try the Dunlop Roadsmart 3s when mine are due for change, they have some good reviews 🤓
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Re: I'm Tired of Tyres
« Reply #8 on: October 27, 2017, 06:46:35 PM »
Must admit that I just use the pressure honda recommend . . 42psi front n back . . I’m lucky though to get anywhere near 15,000 ks . . More like Alan’s mileage . . But I do have a tad heavy right hand . .
« Last Edit: October 28, 2017, 05:57:44 AM by STroppy »
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Re: I'm Tired of Tyres
« Reply #9 on: October 27, 2017, 07:15:10 PM »
Dunlop Roadsmart 2 fitted at Bairnsdale.  An enjoyable ride home, not worrying about the old PR4 making it.  Not sure if there were many more km left in the old girl.







That IS ugly !!!!
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Online Williamson

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Re: I'm Tired of Tyres
« Reply #10 on: October 28, 2017, 12:00:25 PM »
Or try 42 psi (290 kPa).  Works for me! Front and back.  Never had one fail before it wore to the wear bars.
But then I only weight 74 kg...    :whistle


Scalloping appeared when rear tyre was set at 42psi (cold), but pressure had dropped over a four day weekend ride.  The initial thought was that the drop in pressure had caused the scalloping.   On the good (?) advice of others more experienced (and knowledgeable?) in these matters than me, I upped to pressure to 44psi.  We can all see that this was no help.

New tyre on now, pressure set at 42psi (cold).  It is interesting (to me) that the dealer in Bairnsdale suggested 38 to 40psi.  A quick check at the nearby Shell SS, one with the totem style air pump and LCD display, indicated that the pressure was at 41psi.  I re-set this to 42psi, checked it against my hand-held VCO dial type pressure gauge and the tyre pressure monitor sensors (TPMS) - 42psi on all three (I reckon that'll be reliable). 

Another (to me) bit of interest is the increase in tyre pressure when the tyres heat up.  After checking pressures on the TPMS when cold, pressures would often be in the mid (front) to high (rear) 40's after a long, hard ride.

Looks like symptoms of over inflation Sir Michael 🤓


Yes, that seems to be the general opinion.
Dunlop Roadsmart 2 fitted at Bairnsdale.  An enjoyable ride home, not worrying about the old PR4 making it.  Not sure if there were many more km left in the old girl.







That IS ugly !!!!
Have no idea and nothing to suggest. WAIT...... I could be a politician.


I could slow down, but I had a mighty time carving-up the twisties between Grafton and Ebor, the Macquarie Pass, Jamberoo Pass, etc .........
« Last Edit: October 28, 2017, 12:07:52 PM by Williamson »
Cheers,  Williamson (AKA Michael)

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Online Jdbiker

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Re: I'm Tired of Tyres
« Reply #11 on: October 28, 2017, 12:08:50 PM »
I could slow down, but I had a mighty time carving-up the twisties between Grafton and Ebor, the Macquarie Pass, Jamberoo Pass, etc .........


 :like🤓
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Offline perthcarpetcleaner

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Re: I'm Tired of Tyres
« Reply #12 on: November 06, 2017, 06:32:39 PM »
Dunlop Roadsmart 2 fitted at Bairnsdale.  An enjoyable ride home, not worrying about the old PR4 making it.  Not sure if there were many more km left in the old girl.




Nothing a bit of 100mph tape cant fix
Just had to do this on the way back from far ride to Denham WA

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Online Williamson

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Re: I'm Tired of Tyres
« Reply #13 on: November 06, 2017, 06:51:49 PM »
Nothing a bit of 100mph tape cant fix
Just had to do this on the way back from far ride to Denham WA


Not much fun in the twisties, or in the wet.

Denham to Perth, 800km plus, I can only assume you couldn't get a replacement before Perth.

Got a pic of the tyre when you got to Perth?
Cheers,  Williamson (AKA Michael)

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Offline alans1100

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Re: I'm Tired of Tyres
« Reply #14 on: November 06, 2017, 06:57:16 PM »


Denham to Perth, 800km plus, I can only assume you couldn't get a replacement before Perth.

At least three places in Geraldton
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Offline perthcarpetcleaner

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Re: I'm Tired of Tyres
« Reply #15 on: November 06, 2017, 06:58:26 PM »
Nothing a bit of 100mph tape cant fix
Just had to do this on the way back from far ride to Denham WA


Not much fun in the twisties, or in the wet.

Denham to Perth, 800km plus, I can only assume you couldn't get a replacement before Perth.

Got a pic of the tyre when you got to Perth?
Limped into Geralton yesterday....still waiting for new tyre to arrive. Should be back on the road tomorrow
Was not game to go on any further......

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Offline Sicman

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Re: I'm Tired of Tyres
« Reply #16 on: November 06, 2017, 07:00:46 PM »
Re Williamson's tyres - My first OEM set of tyres did this. The cause is under inflation. See the raised lip on the trailing edge of the tread  :fp I only got 13,000 kms off the rear. I researched what I had done wrong and too low a tyre pressure for the weight was the issue. There is a thread on it somewhere in here.

42psi is fine for the bike when you ride it out of the show room as a empty bike.
 :think1
42 PSI is under inflated for a bike once its loaded with:-
Bigger windscreen, tools and tyre repair, farkles of all kinds, tip over bars, highway pegs, GPS, Phones, comms, SPOT, extra lighting, water and snacks, cleaning can & cloths, wet weather gear, compressor, disc lock, seat covers and after market seats, etc.
That's just for all your normal riding -  :think1

Then you throw on the wife, or extra bags or a sleeping roll, fill the pannier bags, add yourself and helmets and jackets, and maybe a trailer  :H

All of a sudden your bike is half a tonne in weight and 42 PSI wont cut it  :Whipped

For my sets of tyres since I have run 44 front and 48 rear and now get 20K minimum.  :think1 If I recall right I remember Diesel running a lot higher pressures and getting 29K from a set.
Food for thought if you are loading up your bike and riding a long distance  ;-*  :slvr13
« Last Edit: November 06, 2017, 07:32:03 PM by Sicman »
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Online Williamson

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Re: I'm Tired of Tyres
« Reply #17 on: November 06, 2017, 07:03:38 PM »


Whiskey Tango Foxtrot!!!

A night in Geraldton couldn't be that bad, well better than the alternative.
Cheers,  Williamson (AKA Michael)

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Offline perthcarpetcleaner

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Re: I'm Tired of Tyres
« Reply #18 on: November 06, 2017, 07:04:12 PM »
My first OEM set of tyres did this. The cause is under inflation. See the raised lip on the trailing edge of the tread  :fp I only got 13,000 kms off the rear. I researched what I had done wrong and too low a tyre pressure for the weight was the issue. There is a thread on it somewhere in here.

42psi is fine for the bike when you ride it out of the show room as a empty bike.
 :think1
42 PSI is under inflated for a bike once its loaded with:-
Bigger windscreen, tools and tyre repair, farkles of all kinds, tip over bars, highway pegs, GPS, Phones, comms, SPOT, water and snacks, cleaning can & cloths, wet weather gear, compressor, disc lock, seat covers and after market seats, etc.
That's just for all your normal riding -  :think1

Then you throw on the wife, or extra bags or a sleeping roll, fill the pannier bags, add yourself and helmets and jackets, and maybe a trailer  :H

All of a sudden your bike is half a tonne in weight and 42 PSI wont cut it  :Whipped

For my sets of tyres since I have run 44 front and 48 rear and now get 20K minimum.  :think1 If I recall right I remember Diesel running a lot higher pressures and getting 29K from a set.
Food for thought if you are loading up your bike and riding a long distance  ;-*  :slvr13
Was towing a trailer so this probably did not help. Will have to run with higher pressure... thanks for the advise

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Offline perthcarpetcleaner

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Re: I'm Tired of Tyres
« Reply #19 on: November 06, 2017, 07:08:08 PM »


Denham to Perth, 800km plus, I can only assume you couldn't get a replacement before Perth.

At least three places in Geraldton
Geralton carries no stock of anything. I think theu figure if they have to freight parts from perth they are proping up the local economy. Cost me $200 accommodation and $100 more fpr the fitted tyre her in Geralton than what it would.cost in Perth.....oh well my bad......feels like ground hog day......hahahaha

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Re: I'm Tired of Tyres
« Reply #20 on: November 06, 2017, 07:10:11 PM »


Whiskey Tango Foxtrot!!!

A night in Geraldton couldn't be that bad, well better than the alternative.
Agreed

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Online Williamson

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Re: I'm Tired of Tyres
« Reply #21 on: November 06, 2017, 07:21:08 PM »
.... 42psi is fine for the bike when you ride it out of the show room as a empty bike ..... 42 PSI is under inflated for a bike once its loaded .... 44 front and 48 rear and now get 20K minimum.....

Oh dear!  I am confused.   

Earlier opinion (in this thread) was that my problem (bad scalloping) was due to over inflation.  PCC's problem is very worn and "squared off" wear in the centre of the tyre, which looks (to me) to be symptomatic of long rides on straight, very straight, flat roads.  Ya need some corners man!

 
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Offline alans1100

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Re: I'm Tired of Tyres
« Reply #22 on: November 06, 2017, 07:25:44 PM »
Most of the highway between Broome and Geraldton is mainly straight sections linked with a bend or two.

While I was living in Karratha anything more than centre tread wear was unusual. Wear on the softer side compound was minimal compared to what I get around here.

Increase the air pressure is ok but I found it didn't make much difference at the front as any extra load is mostly carried on the rear tyre (pillion and/or trailer).
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Re: I'm Tired of Tyres
« Reply #23 on: November 06, 2017, 07:30:08 PM »
.... 42psi is fine for the bike when you ride it out of the show room as a empty bike ..... 42 PSI is under inflated for a bike once its loaded .... 44 front and 48 rear and now get 20K minimum.....

Oh dear!  I am confused.   

Earlier opinion (in this thread) was that my problem (bad scalloping) was due to over inflation.  PCC's problem is very worn and "squared off" wear in the centre of the tyre, which looks (to me) to be symptomatic of long rides on straight, very straight, flat roads.  Ya need some corners man!
Yep - I was talking about your tyres Michael. I agree PCC's are just from long straight roads  :thumb
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Re: I'm Tired of Tyres
« Reply #24 on: November 07, 2017, 06:14:26 AM »
I think the factory recommended tyre pressures are set to provide a compromise between wear and road holding and providing a reasonable braking contact patch. The higher presuures will give better wear rate when riding in mainly open country, just be well prepared for that emergency stop to avoid contact with ‘roos, road debri, other vehicles, pedestrians etc.

I am willing to sacrifice good wear for more safety and better cornering in the Alpine country I do most of my riding in.
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