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PostPosted: Wed Nov 21, 2012 9:02 am 
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Joined: Sat May 12, 2012 8:32 am
Posts: 348
Location: Adelaide, Australia
That tyre pressure calculator recommend 56psi for my front wheel :noidea:

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PostPosted: Wed Nov 21, 2012 2:22 pm 
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Joined: Sun Jul 10, 2011 9:03 am
Posts: 292
56 and 84? Sounds very comfy.
I think that while the recommended front pressure may be fine for just riding along it's less than ideal under brakes.
In fact it may be dangerous.

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Posted: Wed Nov 21, 2012 2:22 pm 


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PostPosted: Thu Nov 22, 2012 10:23 am 
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Joined: Sat May 12, 2012 8:32 am
Posts: 348
Location: Adelaide, Australia
FWIW I'm currently running 110psi F/R, tried 90psi F/R but that felt to "soggy"

and I think I've derailed this thread :oops:

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PostPosted: Sun Nov 25, 2012 5:09 am 
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Joined: Wed Apr 11, 2012 3:40 am
Posts: 335
That calculator is not to be trusted methinks. Put 90 in the front 100 in the rear, riding tomorrow.

Mounted the PRO4 25 fatties on my scott cr1. Clearance in the rear:

http://i.imgur.com/dgewh.jpg


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PostPosted: Sun Nov 25, 2012 7:19 pm 
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Joined: Wed Jun 27, 2012 8:56 am
Posts: 109
120 psi in both and go for it - never ride at 90 unless i've had a flat

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PostPosted: Fri Nov 30, 2012 1:13 am 
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Joined: Mon Aug 01, 2011 5:02 pm
Posts: 113
Just a heads up. Competitive Cyclist has the Pro4 Service Courses for 34.99 today.


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PostPosted: Fri Nov 30, 2012 7:50 pm 
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Joined: Wed Jun 27, 2012 8:56 am
Posts: 109
£25 at Wiggle
http://www.wiggle.co.uk/michelin-pro4-s ... d_Tyre-Red

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PostPosted: Fri Nov 30, 2012 7:56 pm 
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Joined: Mon Aug 01, 2011 5:02 pm
Posts: 113
Spindoctor wrote:
£25 at Wiggle
http://www.wiggle.co.uk/michelin-pro4-s ... d_Tyre-Red" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;


Cool, since they are sold out at the place I posted.

..AND when I followed up MY order had been lost so I was out of luck.

Thanks so much for the link!


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PostPosted: Sun Feb 17, 2013 2:56 pm 
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Joined: Sat Feb 18, 2012 11:49 pm
Posts: 715
Location: Netherlands
What about Ultremos ZX 23 versus michelin Pro4 Comp Service course, or Pro4 Service course? Which ones are better and why?

I´m starting to hate my ultremos, as i've been using conti supersonic tubes of 50g, and a couple of times they scaped between rim and tired and exploded. Twice while inflating at home, one doing a rough sprint on a climb. I already switched to heavier tires to avoid this, but I'd like to return to 50g tubes with another tires, if that is possible. I think these new michelin would do the trick, but I'd like to have some confirmation.

Are these issues normal in Ultremos, as people already mentioned? will this happen also with 50g tubes and mich. pro4? thanks a lot.

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PostPosted: Fri Mar 01, 2013 9:37 am 
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Joined: Sat Sep 01, 2012 8:32 am
Posts: 24
After riding GP4000s for a couple of years, I tried Pro4's, loved the grip on dry surface, excellent descents,
however got too many punctures, 5 in 2 months (always checked inside tyre, rim everything after a tube swap)
had to go back to GP's as my teammates would start hating me for the delays on rides...

Would definitely go to Pro4's again in certain conditions, but they are certainly not an all rounder (which they were not designed to be anyway)


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PostPosted: Fri Mar 01, 2013 6:51 pm 
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Joined: Thu Dec 01, 2011 4:59 pm
Posts: 56
(http://www.chainreactioncycles.com/Kits.aspx?ModelID=85815)

Crc, £45 for 2 with free inner tubes. only in 23 mm though with 40 mm valves.

well every1 seemed to be posteing good deals :P


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PostPosted: Fri Mar 01, 2013 7:03 pm 
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Joined: Sat Jul 29, 2006 2:36 am
Posts: 1131
Location: UK
It's a pretty good deal except the tubes are the heavy A1s. If it was the Ultralights it would be excellent.
I wouldn't put A1s in Pro 4s. Save them for winter / rain bike tyres.


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PostPosted: Fri Mar 01, 2013 7:14 pm 
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Joined: Thu Sep 06, 2012 4:30 am
Posts: 14
qeaou wrote:
After riding GP4000s for a couple of years, I tried Pro4's, loved the grip on dry surface, excellent descents,
however got too many punctures, 5 in 2 months (always checked inside tyre, rim everything after a tube swap)
had to go back to GP's as my teammates would start hating me for the delays on rides...

Would definitely go to Pro4's again in certain conditions, but they are certainly not an all rounder (which they were not designed to be anyway)


The puncture thing is what has me hesitant to switch away from the GP4K - which version of the Pro4 did you try? Was it the regular Service Course, or one of the lighter ones?


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PostPosted: Fri Mar 01, 2013 9:17 pm 
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Joined: Mon Jul 26, 2004 8:57 pm
Posts: 759
Location: Ireland
Using Pro 4 endurance (Irish roads + fat git) so far they have been excellent. I have used Michelin tyres for years and have to say I think Pro 3 were a step backwards, these put Michelin back on top imho.


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PostPosted: Fri Mar 01, 2013 11:32 pm 
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Joined: Wed Dec 07, 2011 1:26 am
Posts: 400
Location: California's country side
900 miles and the pro4 top is squared on the rear tire pretty good. Even not alot of climbing..
Seems like half the life of GP4000s.. but the feel is more supple.


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Posted: Fri Mar 01, 2013 11:32 pm 


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