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PostPosted: Fri Feb 08, 2013 9:46 am 
Retro Guru
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Joined: Sat Sep 15, 2007 10:08 am
Posts: 1041
Location: Thatcham - Berkshire
Hi

I am currently running a set of Tioga Psycho 2 tyres. They are listed as 2.1 but actually measure 2.3 at their widest point.

I am looking at replacing them with a set of Pananrace Fire XC Pros, which come in 2.1 or 2.4. Does anyone use these and can tell me what the real world width is like compared to what they (should) be?

Thanks

Ade


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PostPosted: Fri Feb 08, 2013 9:54 am 
Old School Hero
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Joined: Sat Dec 16, 2006 11:24 pm
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Location: Netherlands
It also depends on how wide your rims are


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PostPosted: Fri Feb 08, 2013 10:23 am 
MacRetro rider
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Joined: Fri Feb 09, 2007 4:16 pm
Posts: 8658
This is true, some tyres state 2 tyre widths on their sidewalls dependent on the width of the rims used. my WTB Velociraptors 2.1" have 2 widths in mm on the side wall, cant remember the sizes but its a significant difference in mm :roll:


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PostPosted: Fri Feb 08, 2013 12:58 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8219
Location: New Forest, UK
Panaracers always seem to come in a bit smaller than the nominal size. My 1.8 Fire XC Pros are about the same size as others 1.5"


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PostPosted: Fri Feb 08, 2013 7:20 pm 
Retro Guru
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Location: Thatcham - Berkshire
...you wouldn't think it would be that hard would you....

Think I will order a set of the 2.4's and hopefully they will come in around the same width as the Psychos - thanks for the responses guys!

Ade


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PostPosted: Fri Feb 08, 2013 7:35 pm 
98+ BoTM Winner / Gold Trader
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Joined: Wed Aug 15, 2007 7:29 pm
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Location: Netherlands
IIRC the 2 widths on the WTB are for casing width and tread width (across the tip of the tread blocks).

I would check the clearance of the frame and go with the 2.4's if they fit. I can run lower pressures in wider tires for better comfort, more traction, more grip and better rolling resistance off-road. The downside is a bit more resistance on the road, and a bit of weight. I know the wider tires work best for me, if you know what matters to you, take your pick.

Enjoy!!


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PostPosted: Fri Feb 08, 2013 10:17 pm 
Old School Grand Master
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Joined: Wed Apr 12, 2006 12:33 pm
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Location: The Home Of Mountain Biking, And All Great Things.
Just like all vehicle tyres in terms of the rim width changing the wall. I put some 33 12.5 mud terrains on my 7 wheels and they were bulbous as a squid in a polyethylene bag.


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PostPosted: Fri Feb 08, 2013 11:03 pm 
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Location: UK Southwest
Yep from what I've seen thinner rims make the tyres wider because they angle the side knobles out more.


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