Originally Posted by
Bad1
What kind of tire pressure are you using on your all mtn. 29er rims? I'd be a little cautious of using high pressure for road purposes. Possibility of a tire blowing off.
90/95 psi front and rear. The wide rim really bulbs out tires quite nice. 28 mm Conti GP4000s measure 33 mm across with a caliper and the 25 mm version measures 29 mm mounted up. The wearing contact patch looks about the same as similarly sized tire on a single with a more narrow rim.