David Gustafson
I mounted a set of Schwalbe Racing Ralph CX clinchers on Mavic Open 4
Rims semi ghetto tubeless. I used a cut down 26" tube with Stan's yellow
tape and sealant. I raced them at the second Klamath Falls race which
was a perfect test for them. It hard dirt with loose stuff over it and
had a section I refer to as a rock garden. It consisted of about 10
yards of large, 4" to 5" diameter rocks. I banged through the rock
section each lap. I weigh 190 pounds and ran the tires at 40 psi. They
worked perfectly while a lot of guys flatted on tires with tubes.