Tire design: Schwalbe set to release its Procore dual-chamber mountain bike tire system Back in February, we heard about a prototype Schwalbe mountain bike tire system that used a dual-chamber setup to both increase traction and minimize flats. The design has since been refined, and the commercial version of the product was officially unveiled last month. It’s called Procore, and we had a chance to see how it works at Interbike 2014. First of all, with regular mountain bike tires, there’s a bit of a compromise. If the air pressure is too high, the tire doesn’t have as wide or compliant of a gripping footprint on the ground, plus it bounces wildly off of things like roots and rocks. If the pressure is too low, however, pinch flats can occur when riding over those same obstacles, and tubeless tires can even get burped right off the rim. As a result, most cyclists keep their tires at a somewhere-in-between pressure that isn’t ideal for either grip or protection. Procore addresses this situation. Essentially, it allows cyclists to install a high-pressure inner tube (the blue thing in the photo), inside their existing tubeless tire. That tube doesnt take up all of the space inside, however – theres still an air space between it and the inside wall of the tire. For simplicity, Schwalbe refers to the tube as the inner chamber, and the space as the outer chamber. Procore adds a claimed 200 grams to each wheel, and can be used with all tubeless-compatible rims. video:
Posted on: Thu, 18 Sep 2014 13:00:01 +0000
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