Schwalbe tires:

a.    Are really expensive to buy
b.    Never get flats
c.    Never wear out
d.    That's only a slight exaggeration, and so
e.    Despite the high cost, are cheaper to use if you ride a lot.

The Marathon Supreme is a particularly costly tire because it has all of Schwalbe's best & most expensive materials and methods in it. We sell only the 700x42 right now, and it measures not 42mm, but closer to 37.5mm when mounted on a 21mm wide rim. UPDATE: we are now selling 700x35 Supremes.  The 35 actually measures to be about 33mm. 

In our tire line-up, they're one notch fatter than the world-beatin' Jack Brown. Both are basically round fatty slicks. If you're looking for a fatter Jack Brown, just get the Schwalbe Marathon Supreme 700x42 (actually 37.5 or so).  495 grams.

Kevlar bead (so it folds), and a Vectran belt. Vectran is the latest greatest densest lightest toughest thorn-foiling Kevlar out there, and that also jacks the price up.

If your bike fits these, you'll never regret putting them on.

NOW available in 26" x 1.6" (36mm actual) and 700x50 (45mm actual on 22mm rim).