Interbike: Schwalbe Procore dual-chamber tire system
The opportunity
We’ve all started to discover the benefits of low tire pressures. Traction is improved and rolling resistance is better on the rough stuff. But there is a huge downside of pinch flats and burped tubeless tires. If only there was a way to have high pressure protection and low pressure traction.
What is Procore?
Schwalbe aimed to solve the problem mentioned above by designing the dual-chamber Procore system. There is an inner air chamber that can be run at high pressure and an outer tire chamber that can just focus on optimizing traction and stability.
The inner chamber is an inner tube with a blue sheath that sits right against the rim and its job is to protect the rim and the tire from flats. Its other job is to hold a tubeless tire against the rim for a secure fit to prevent tubeless burps. Pressures for the inner chamber will be around 60 psi and is really just capped by the capacity of the rim to hold outward pressure.
The outer chamber is then a tubeless system compatible with any tire and any sealant. The only requirement is the rim has to be at least 23mm wide internally.
The magic to all this is a presta valve that can inflate the inner and the outer chamber. This is performed one at a time, as the inner chamber is inflated when the valve is set in one position. Screw the valve out in another setting and it’s in a mode to inflate the outer chamber.
Does it work?
Pros are now using it and they are winning. It could be an unfair advantage and the enduro and downhill pros seem to be scrambling now to respond to this technology or get sponsored by Schwalbe.
Its use is All Mountain, enduro and downhill racing for sure, as it adds about 250 grams of weight per tire. But the world is waiting now until its release date of January 2015 and until they can spend their $230 to try out this system.
For more information visit www.schwalbetires.com.
This article is part of Mtbr’s coverage of the 2014 Interbike trade show in Las Vegas. For more from Interbike CLICK HERE.
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