Challenge Criterium SC S Tire


Challenge Criterium SC S Tire


The ultimate race-day clincher.

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If you're looking for race tubular performance in clincher form, the buck stops here. The casing is 320TPI spun cotton, with Challenge's extra-soft S-Compound tread for maximum speed, control, and comfort. It does come with a puncture-resistant strip under the tread, but have no illusions - this is a race tire. It wears down a bit faster than other tread compounds, but it's just so good you won't want to ride anything else.

What is a Handmade Clincher?

Most tires are molded and pressed to vulcanize (bind) the rubber. Though it's a very efficient manufacturing method, the heat toughens the rubber and casing, which in turn compromises ride quality. Handmade tires are not vulcanized - instead the tread is glued directly to the casing, which is then folded and glued over aramid fibers to create a bead. The resulting tire is much more supple, and though more difficult to mount on the rim initially it stretches over the tube and gives unparalleled ride quality. Additionally, challenge tires use natural rubber for the treads, which is much softer for better and more predictable traction.


  • Diameter: 700c (ISO 622)
  • Width: 25mm
  • Casing: Corespun Cotton, Black
    • TPI: 320
  • Weight: 215g
  • Recommended Pressure: 105-145psi