From: Dean H on
friggin' Michelin tire sizes, new metric sizing, old metric sizing...
everybody is on a different page. PITMFA

2001 GasGas xc300
there sure are a lot more choices for folks with 19"wheels.

120/90-18 michelin s12 would be the easy answer.

Depending on which conversion chart you use, perhaps this IRC M5B in a
140/80-18 would be just fine. That is not a cheap tire but looks nice
and dennis kirk has a nice price. Has anybody used one of these?

matching front either way...
I want fresh sneakers for Stimilon.

decisions, decisions...
I'd run Cheng Shin if they'd sponsor me LOL

From: Wudsracer on
Dean,
If you use a michelin S-12, get the 140/80-18, but don't expect to
be breaking loose the rear wheel very much. (In "Dunlop-speak" this
would be a 120/100-18. Dunlop uses "new Metric" sizing. Michelin uses
"old Metric" sizing. Pirelli may use either, depending on how old the
tire design/mold is.)

If you want to go cheap; in deep sand, the old cheap Kenda K760
Trackmaster2 works very well.







>On Thu, 17 Jun 2010 05:15:39 -0700 (PDT), Dean H <dfhyman(a)optonline.net> wrote:

>friggin' Michelin tire sizes, new metric sizing, old metric sizing...
>everybody is on a different page. PITMFA
>
>2001 GasGas xc300
>there sure are a lot more choices for folks with 19"wheels.
>
>120/90-18 michelin s12 would be the easy answer.
>
>Depending on which conversion chart you use, perhaps this IRC M5B in a
>140/80-18 would be just fine. That is not a cheap tire but looks nice
>and dennis kirk has a nice price. Has anybody used one of these?
>
>matching front either way...
>I want fresh sneakers for Stimilon.
>
>decisions, decisions...
>I'd run Cheng Shin if they'd sponsor me LOL

From: Dean H on
Wudsracer <babba...(a)Lucy.com> wrote:
> Dean,
>   If you use a michelin S-12, get the 140/80-18, but don't expect to
> be breaking loose the rear wheel very much.

Thanks Jim, will do. My riding style does not depend a lot on
wheelspin. Well, I have been known to say "spare the clutch, let the
tire do the slipping". Last year I was experiencing copious wheelspin
with the 120/90-18 s12.

>(In "Dunlop-speak" this
> would be a 120/100-18.  Dunlop uses "new Metric" sizing. Michelin uses
> "old Metric" sizing. Pirelli may use either, depending on how old the
> tire design/mold is.)

Michelin is now also split using two systems S12xc, M12xc and Desert
use "non-standard" markings, the others use "Michelin Markings". This
could really make a Monty Python skit.

OK, so...
my GG Manual del usuario (Service Manual) specifies:

Front 80/100 x21
Rear 120/90 x18

is that new metric, old metric, Michelin marking, or "non-standard"
Michelin marking? LOL
This thing is as clear as mud:
http://www.michelinmotorcycle.com/mxsizing.html

is the 140/80-18 oversized? (that's OK for Southwick, I think)

A simple prefix on the sizes could be an easy fix. They wouldn't even
have to change the old tire molds, just add the prefixes to the
catalogs. <grumbles...>

Thanks again! You da man.
-Dean
From: WW on

"Dean H" <dfhyman(a)optonline.net> wrote in message
news:84efd8c8-53fa-47d5-8e18-cc31b1930227(a)s9g2000yqd.googlegroups.com...
> friggin' Michelin tire sizes, new metric sizing, old metric sizing...
> everybody is on a different page. PITMFA
>
> 2001 GasGas xc300
> there sure are a lot more choices for folks with 19"wheels.
>
> 120/90-18 michelin s12 would be the easy answer.
>
> Depending on which conversion chart you use, perhaps this IRC M5B in a
> 140/80-18 would be just fine. That is not a cheap tire but looks nice
> and dennis kirk has a nice price. Has anybody used one of these?
>
> matching front either way...
> I want fresh sneakers for Stimilon.
>
> decisions, decisions...
> I'd run Cheng Shin if they'd sponsor me LOL
>

I know very little about metric tires. My Yamaha TW 200 has a 130/30/18
front tire ( Bridgstone) but side wall printing says use on front wheel
only.???? ww


From: Dean H on
Happiness is a tracking number.
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