Schwalbe Announces Dual Chamber Tire System Details

Schwalbe Announces Dual Chamber Tire System Details

Schwalbe Announces Dual Chamber Tire System Details

We first experienced Schwalbe’s new dual chamber tire and wheel system back in February, but at that time Schwalbe wasn’t ready to reveal its inner workings. The system, now called Procore, has already seen success on both the World Cup DH and Enduro World Series circuits, and now details are being released that confirm our suspicions about what the inner workings involve. The official press release from Schwalbe is below. – Mike Kazimer 


Schwalbe Procore


No more snake-bite punctures: A revolutionary dual chamber system makes it possible to ride with very low air pressures and, as a result, improve tire performance enormously. Initially, Schwalbe and the wheel manufacturer Syntace were working on such a system independently of each other. Now, the two companies have joined forces to further develop the dual chamber system.

With low air pressure, off-road tire performance improves significantly. The tires can adapt better to the terrain and react far more sensitively. They roll more easily over uneven ground and provide more grip and control. “But one can hardly risk riding on standard MTB tires with less than 1.5 bar (20psi), because the risk of snake bites is simply too great”, explains Markus Hachmeyer, Senior Product Manager. With the current trend towards wide wheel rims, the trail performance of the tires at low air pressure is improved and has become less “spongy”. The risk of snake bites, however, remains the same.

The solution is an innovative dual chamber system. There is an additional air chamber inside the tire. This inner chamber is filled with high air pressure (55-85psi) and effectively prevents the tire hitting the edge of the rim. At the same time, the inner system also secures the tire on the rim and prevents the dreaded “burping”, a loss of air of the tubeless system in the case of low pressure. Depending on the situation, the air pressure in the outer chamber can now be reduced to 1 bar (14psi) without running any risk. 

Schwalbe Dual Valve. Matt Wragg photo.

Nico Lau rode the system to victory at the Tweedlove stop of the Enduro World Series, and Emmeline Ragot and Sam Hill both stood on the podium at Fort William after running the Procore system. Photo: Matt Wragg. 

“All test cyclists to date have been thrilled with the new possibilities,” reports Markus Hachmeyer and recaps the feedback: 

With one bar (14psi), the tire grip is incredible. The contact surface is very large and the tires seldom, if ever, slide on loose ground. Even on the roughest terrain, the tires literally stick to the ground. The tire is the most sensitive cushioning element on the bike. The extra cushioning and traction because of the low air pressure leads to much better control over the bike and allow distinctly higher speeds.All this without the risk of snake-bite punctures. Dented rims become a thing of the past. Significantly lighter tires can be used in even the toughest conditions. What is more, the additional air chamber has excellent emergency running characteristics.

Schwalbe Procore


In order to exploit the advantages of the low tire pressure without risking a puncture, Schwalbe and Syntace were working on the same idea independently of each other and had also applied for patents. Now, the two companies are pooling their know-how to develop the system to market maturity. “At the latest at the Eurobike, we will be able to present precise information regarding design and prices,” says Markus Hachmeyer. Schwalbe will be responsible for the production and marketing of the system that is expected to be compatible with conventional tires and rims with a minimum internal width of 23mm. Weight is expected to be less than 200g.

Outlet Bikes – Calgary’s Newest Shop

Outlet Bikes – Calgary’s Newest Shop

Outlet Bikes – Calgary’s Newest Shop

 

Times are changing in the world of bicycles. Wheels sizes are getting bigger, then smaller, then bigger again. With the ongoing changes in the bike industry the Calgary Cycle Group has made changes in how they do business. From this thought process Outlet Bikes was born.

With the fast paced changes in the bike industry we were looking for a way to keep the floor filled with fresh and new products so our customers could always have their pick of the latest and greatest products we have to offer.” 

Calgary Cycle Outlet - Mountain Bike Lineup


Walking into Outlet Bikes is not what you would expect from a discount bike store. The walls are lined with custom graphics, there is service stands in the back shop, and the bike selection is far from what you would expect to see in a “clearance location.” This is because the Calgary Cycle Group prides themselves on quality and Outlet is no exception. The floor is filled with a plethora of product from Colnago, Pinarello, Santa Cruz, Scott, Ibis, Niner, Intense, Yeti and many more. With this selection of bikes at rock bottom prices it is almost certain you will find something that is right for you.

Calgary Cycle Outlet - Road Bike Lineup


You would think with the crazy deals at Outlet Bikes you would get a decline in service, as if shopping at some kind of outlet mall store. This is far from the case. Outlet Bikes offers the same service, brand names and expertise as the rest of the Calgary Cycle family but at prices that will leave you with enough cash to buy your friends a round of post-ride beers. Every bike that leaves the doors of outlet is entitled to the same “Full Cycle Service” as a bike purchased from the other 4 CC group locations. This means you can have your bike custom sized to you at any of the locations in the city, as well as you are entitled to lifetime tune ups at no additional charge. 

Calgary Cycle Outlet - Accessories


To complement their 1200 square foot retail space Outlet Bikes is live on the internet at www.outletbikes.ca. This is a live-inventory web page filled with actual photos and descriptions of exactly what Bikes, Forks, Brakes, and any other hard goods they have available, in real-time. ”This helps our customers greatly as being located at #24, 1410 – 40th Ave NE in Calgary we are slightly off the beaten path of bike shops.” Outlet Bikes makes up for this location with the lowest prices you will ever see on these bikes. If you live in the Calgary area and you are looking for a previous season’s bike at a great deal, stop by the bike shop with the “Worst Location, and Best Deals” today!

Calgary Cycle Group