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Nothing stays the same:In the future, air pressure can be controlled in the tire’s double chambers. In the outer chamber, the air pressure is extremely low – ideal for maximum off road performance. In the inner chamber, directly on the rim, there is high air pressure even a very strong impact cannot dent the rim edge. At the same time, the inner high-pressure system secures the tire onto the rim. “Burping”, the dreaded loss of air at low pressure in conventional tubeless systems, is impossible.

Off road:Riding at lower pressure means better performance … but at the same time it increases the risk of failures. The limit so far is at about 20 psi, below which it’s hardly possible to dare to ride normal MTB tires.

  • Tire pressure can be reduced to a minimum 14 psi, thus providing a huge amount of grip.
  • Even on the roughest terrain tires “stick” to the ground.
  • The tire provides extremely sensitive cushioning.
  • Due to the extra cushioning and traction there is much better steering, braking and traction control.
  • No more risk of snake bites. The rims are extremely well protected from denting.
  • Even in the toughest conditions, significantly lighter tires can be used.
  • Excellent emergency running characteristics due to the internal high-pressure air chamber.



Procore can be used with any tubeless MTB tire.

Weighing ca. 200 g per wheel. Compatible with all wheels regardless of brand.

procore rim specs

  1. MINIMUMinternal rim width of 23 mm.
  2. MAXIMUMdistance from rim well to rim bottom of 20 mm.

Sold as a set of 2 with all necessary components, in order to convert a complete bike. Later on components will also be individually available as replacement parts.


2 x PROCORE inner tires 2 x PROCORE special tubes 2 x Tubeless rim tapes Doc Blue Tire fitting aids.Tire Levers: The blue color is a trademark of Park Tool for bicycle tools and is used under license.


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