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#897202 - 07/29/14 01:13 AM PR4 GTs - I like 'em and let me tell you why
Highway41 Offline
Member

Registered: 06/13/03
Posts: 1106
Loc: Jax, Fl
Bought a new GT for the front early summer paired with a few thousand mile old PR3 rear. Rode out to TX from Jax for a Total Control ARC class with my Texas riding partner and got a good taste for the front GT. Had three days of droning out and back, one day of solid to heavy rain on mostly state roads in MS and LA and a day of slow speed maneuvers on a large, hot concrete pad during school. The PR4 front inspired much confidence in wet riding but especially during the school. The next couple months were a few K miles mostly chasing Bernie and I really liked how the bike handled.
Put a new PR4 GT on the rear and heading for TX to pick up my riding buddy and then on to CO. 4K of droning out and back with one day of heavy rain and windy and three days of hot and windy. Liked the ride very much and rain was again no problem (did I mention I hate riding in the rain?). The 1K spent riding the Rockies were amazing – grip was excellent with no “oh boy” moments in grooves, water, sand, gravel, and one bull elk. The bike has never handled better.
The front has 9K miles and 10/64ths left of the original 16/64ths in my wear mark. The rear has 5K and also 10/64ths of the 16/64ths original depth. Each should be good for another 7K plus miles. Best of all, both are still round with no middle flattening.
Lastly, the style of my Texas riding partner who took the ARC school with me has always been gentlemanly. He put a set of PR4s on his ‘12RT before the trip and we both agreed he rode the best he ever has. Not aggressive but I never lost sight of him for long.
Bill
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#898448 - 08/07/14 12:39 PM Re: PR4 GTs - I like 'em and let me tell you why [Re: Highway41]
RTJohn Offline
Member

Registered: 06/21/11
Posts: 583
Loc: Los Angeles, CA (Santa Clarita...
I have a very similar situation in regards to a PR4 in the rear and a PR4 GT in the front. I don't recall asking for a GT but that's what I ended up with. I only noticed it when riding home. The front end felt a little stiffer. Not unpleasant, but noticeable. So far so good. I like my Michelins.
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2013 R1200RT
2010 R1200RT(totaled)

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#903953 - 09/14/14 03:56 PM Re: PR4 GTs - I like 'em and let me tell you why [Re: Highway41]
Kakugo
Unregistered


I was assessing my PR4GT's in broad daylight today. They have about 9000km on them.

The front is probably good for another 3000-4000km, which would make it about as long lasting as PR3's. Good.

The rear... it will be a major miracle if it lasts another 2000km, but I suspect it will be ready for replacement in half that mileage, meaning a week or so. That would make it as long lasting as PR2's. Not so good.

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#907232 - 10/06/14 02:22 AM Re: PR4 GTs - I like 'em and let me tell you why [Re: Highway41]
Highway41 Offline
Member

Registered: 06/13/03
Posts: 1106
Loc: Jax, Fl
Update – I still like ‘em and let me tell you more of why.

Since the original post, I’ve ridden about 1K locally mostly chasing Bernie and then a 4K trip to TX Hill Country and the Big Bend area. So I’ve had a mixture of working on the chicken strips, a lot of droning on state and US highways to get out west and back home, and a goodly number of miles on nice Hill Country roads and the scenic loop around McDonald Observatory. Only one day was wet. I ran 34lbs in the front and 40lbs in the rear during the trip.

First, a photo of the front now with 14K miles:


There is 6/64ths tread depth at the middle of the sipe and it should be good for another 2 to 4K miles. There seems to be more wear on the sides with the middle being raised. Turn in is still good and it rides and handles about the same as new. It has not gotten noisier as did my PR3s when worn.

Now a photo of the rear with 10K miles:


There is some flattening but not nearly as badly as former tires, which would pretty much be toast at this mileage. There is still 5/64ths in the middle holes so I figure it is also good for another 2-3K miles, depending upon Bernie ☺. Also, there is no “tip over” moment when entering a curve like I had with squared tires. The 4s feel and handle about the same as when new holding lines well.

Lastly, counting local miles a set of tires was usually good for only one long trip, as 10K seemed about the limit especially for the rear. The front has been out west three times and the rear twice and there is still plenty of miles left. Maybe western NC before it gets too cold.
Bill
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2013 R1200RT

http://highway41.smugmug.com/

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#909320 - 10/24/14 11:06 AM Re: PR4 GTs - I like 'em and let me tell you why [Re: Highway41]
SteveHebert Offline
Member

Registered: 09/30/01
Posts: 2307
Loc: Middle East
That is impressive mileage and sounds like great handling. I have only used the PR2s and have hated them each time. The front howls so badly when in a turn. Hopefully they fixed that with the 3s and 4s.

I jus installed a set of Continental Conti-motion to see how they do. Headed to the Smokies this morning for a great weekend of fun!
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http://s-hebert.smugmug.com
1976 R75/6 "Louise"
2004 R1150RT

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#909338 - 10/24/14 02:24 PM Re: PR4 GTs - I like 'em and let me tell you why [Re: Highway41]
mickeym3 Offline
Member

Registered: 03/17/12
Posts: 474
Loc: Savannah, GA and Port Ludlow, ...
Wow, impressive on a GT to be sure; known tire eaters as everyone knows. Had PR3's on my Camhead and loved them (orig Bridgestones were crap). Wethead came with Metzelers and jury is still out but after upcoming trip to the Upper Blueridge and Skyline I may be ready for a set and PR4's are in my sights. Thanks for the update!


Edited by mickeym3 (10/24/14 02:26 PM)
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Jim Carter
2013 WR250R

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#909350 - 10/24/14 03:42 PM Re: PR4 GTs - I like 'em and let me tell you why [Re: Highway41]
Kakugo
Unregistered


Just a quick and very related question.

I am on my second set of PR4GT's. I cannot believe these are the same tyres as those who came before. So much smoother even on harsh pavement. We are talking silk smooth here, not even a murmur.
I run them at exactly the same pressure and were balanced by the same person using the same machine as the set which came before.

Does anyone know if Michelin changed anything? I can provide the manufacturing date if needed.

Thanks.

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#915059 - 12/18/14 02:24 AM Re: PR4 GTs - I like 'em and let me tell you why [Re: ]
Highway41 Offline
Member

Registered: 06/13/03
Posts: 1106
Loc: Jax, Fl
I still like ‘em, …but not so much lately.

Well-worn tires never feel good and the PR4s are no exception. In the last 500 to 1K miles, the rear has flattened more but still feels good. The front has developed distinct shoulders more so on the left side, which makes it follow grooves or irregularities in the pavement. Smooth pavement is no problem but the front darts around a good bit on rougher tarmac.

Confidence is not as good in the curvy stuff as you can feel it roll on and off the shoulder edges and holding lines is more difficult. Changing lines mid curve is more exhilarating than before.

Even worn, these tires are much quieter than the 2’s or 3’s.

Here is the front at 15K miles. Easy to tell the different rubber compounds. There is almost 5/64ths tread depth measured where the large sipe intersects the small cross sipe.


And the rear at 11K miles showing 4/64ths depth in the center holes:


Fronts usually go 12-14K miles and rears 8-10K so mileage has improved and there’s another 1-2K possible. I’ve been running 33/40psi but will bump it up to 36/42psi until I change them out for another set of PR4s.
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2013 R1200RT

http://highway41.smugmug.com/

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#916063 - 12/29/14 08:39 PM Re: PR4 GTs - I like 'em and let me tell you why [Re: Highway41]
RoadWolf Offline
Member

Registered: 12/23/03
Posts: 1258
How in the hell are you getting way over double my mileage? At 6,500 the rear was GONE and the front at 7K? 14 RT with PR4GTs. I ride everyday between work and in WNC every time I can...
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#916065 - 12/29/14 08:54 PM Re: PR4 GTs - I like 'em and let me tell you why [Re: RoadWolf]
CoarsegoldKid Offline
Member

Registered: 10/23/06
Posts: 3316
Loc: Coarsegold, Ca, USA
Originally Posted By: RoadWolf
How in the hell are you getting way over double my mileage? At 6,500 the rear was GONE and the front at 7K?...

What he said ^.
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Joe

'05 R1200RT 109K miles, takes me down the highway.
'13 KTM 690 Enduro R 16K miles takes me through the woods.

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