1 or 2 short dirt sections I currently walk on the Mythos Slick 42s
(steep, deeply rutted jeep trail with a very variable amount of gravel
and sharp, fist-sized rocks sprinkled about, in an attempt to fill the
ruts, probably). But in order to ride those sections, I'd have to go
50-60mm, I think, so I am happy to keep walking those 50 meters. So I
am hoping for similar dirt performance as the Mythos, but less buzz on
the road.

There really seem to be two approaches to this kind of tire:

1. Marathon Extreme style: short, very large "knobs" with relatively
narrow grooves in between, with a fairly round profile.

2. Specialized Borough SC Pro style: smooth center section with
relatively tall and widely spaced side knobs.

Presumably style 1 does better in on-road cornering, while incurring a
weight penalty, but can anyone comment on other differences between
the styles? Does style 2 really improve off-road cornering? Note that
I am not really concerned with going fast off-road, I just want to be
able to ride through some relatively technical stuff, while still
having a compliant and smooth ride on the way there.

Gernot

On Feb 18, 10:15 pm, Patrick in VT <[email protected]> wrote:
> On Feb 18, 1:52 am, Earl Grey <[email protected]> wrote:
>
> > Thanks all, for your suggestions.
>
> nah, the Grifo XS definitely doesn't run wide - it's barely 32mm.  but
> it's fast tire on all kinds of off-road surfaces and it's very lenient
> with psi, which is more important than nominal width in my
> experience.  personally, i wouldn't ride it on the road, but it sounds
> like you want at least a little bite in the tread profile.
>
> is the 25% dirt really knarly or what?  the marathon extreme (and some
> other tires considered here) seems very aggressive if you're looking
> to spend, say 90mins out of 120mins on the road and want a lively,
> fast rolling tire.

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