I have a box of 20 samples of the new Tioga ProLine SF tires back at the office. 200g, 23c, slick down the middle, grippy on the sides, all black. Hopefully I won't have to use all 20 of them for this current project.

I've just come off the ironic Hutchinson Fusion Long distance. I dunno what a 'long distance' is in France, but I only got 2500kms out of the back one. It looks like it's gone to hell and back...huge chunks taken out of it.....flat as a tack in the middle.....not pretty.