Schwalbe Procore – the long-awaited test intro: from c_g
Since its launch at last year’s Euro Bike, I have waited for this moment – to finally install the two-chamber system of the Schwalbe Procore on my bike and to test it extensively.
Will these inconspicuous black boxes contain what it takes to revolutionize the bike world? We shall see, but we sure hope so.
Now the time has come and the first test samples have been sent out to the media representatives. It will still take some time until the system is also available in the stores, but until then we can tell you if the wait was worth it.

How it should all look inside the box: All that is required to convert a bike – available in 29″ or 27.5″.
I personally think the concept behind Procore represents the next great revolution in MTB sport – nothing else like this is on the market, promising lower tire pressures, endless traction and extreme cornering grip and also a significantly easier tubeless assembly of tires on all wheels, but especially the wider internal width rims that are the future.
Now it’s time to put the system through its paces and see if the installation is really that simple as was demonstrated during the presentation and whether the benefits in practice are really so gigantic. We will see.
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Here in any case is the listing of the components of the conversion kits, for a bike (ie for 2 tires) which will soon be available for 179.- Euro (about $200USD) in a shop:
29er inner tube (butyl with a special double-valve) – 109 g ea

The tube is a fairly simple, made from butyl, but the valve is unique and is the real masterpiece of the system.
The trick on the tube is the special valve with which allows one valve to supply air to both chambers. To switch back and forth between the two chambers, simply turn the upper part of the valve completely counter-clockwise to inflate the main tire chamber or turn clockwise (to the right) to bring up the inner tire pressure. The plastic air directors will send the air to the correct spot.
Inner tires – a very fine carcass with special stretching bead – 135 g ea

The “inner tire” is a special low-stretch construction for both the high pressures of 60-90psi and also to stay as light as possible. Above you see the small hole at the silver lining for getting the air into the main chamber.
Flexible plastic directors send the air to the right place – – Air Guide 4 g.

The small flexible Air Guides direct the air to the inside tire in order to supply the main chamber.
For this, the kit comes with:
- Two 60 ml bottles Blue Doc sealant
- A 50 ml bottle Easy Fit Assembly Fluid
- Three stable tire levers with smarter hold function
- A few stickers
- And of course, detailed, multi-lingual assembly instructions.

All kinds of accessories to facilitate the installation including everything you need for the upgrade of a bike.
Counting the individual weights together, Schwalbe’s Procore adds an additional 248g per tire compared to a conventional tubeless setup. That is nearly 500 grams more weight on the bike … and worse yet, it’s at the outside of the wheel where the extra rotating mass is most noticeable! Certainly nothing good here for weight fetishists, but for those hungering for more and more traction and puncture protection – and I count myself in that group – it is important to know if the benefits meet expectations.
Oh yes, a conversion kit for a bike is set at 195. Euro no matter whether it is for a 26″, a 27.5″ or a 29″er. Our last information was that it will first only be sold in complete sets, but the individual prices for items suggest that soon the small parts will be sold outside the group as a whole.
Now we will mount the Schwalbe Procore system (one may want to view the video or the assembly instructions before doing this) and then we will go for it on the trail. Let’s see whether it really “will change everything” like it says on the package.
See you soon … RIDE ON,
c_g
Installation video:
Procore mounting (English) from Schwalbe Tires on Vimeo.
Note: All the components shown here were sent for test/review at no charge to Twenty Nine Inches-DE. We are not being paid nor bribed for this review and we will strive to give our honest thoughts and opinions throughout.
I like running around 19psi in my rear 2.3 tire for traction however when I run less than 22psi I get occasional rim strikes. This causes tire sidewall pinch flats that tubeless goo won’t seal. I’m hoping that Procore is the solution.
I’m no weight weenie, but that is a BIG weight addition!
I’m no skinflint, but that is a BIG price tag!
Nevertheless, really looking forward to seeing how this pans out. There is a similar concept for dirt bikes that many swear by (Tube-Liss, or some such name).
Given the obvious negatives of the additional weight, the advantages are going to have to be pretty stonkingly impressive to get me to part with that much cash.
I look forward to the review! (I’ll start saving just in case!)
I remember reading that the max inner rim width was 23 or 25. Is this true? It seems as though rim tech had blown right past this system which is a shame if so.
@ Art: I am with you, That is what I am hoping for, too
@ Tom & Ben Connor: Indeed as it is there is quite some weight penalty. In contrast, when you compare it to a standards tube setup, the extra weight is only 80 g or less – no big deal anymore. SCHWALBE also says, that with Procore you could go for a lighter tire and still achieve an improved grip and flat protection .. we will find out.
@ Andy: The opposite is the case; SCHWLABE says Procore should best be used with rims of 23 mm inner width or wider. I will be running it on my AC Wide Lightnings for starters. They have a 29.5mm inner width.
Gee I wish that you had a link to the installation video. That way we could see what is involved.
@Yogi…there ya go…imbedded Procore Install Video.
gg
Fast forward to see Harry Heath’s experience with ProCore at Ft. William. http://www.redbull.com/en/bike/events/1331684156687/uci-mtb-world-cup-2015-round-4-fort-william-scotland
4 weeks later and no review?
I finally got mine Thursday (ordered straight from Schwalbe) and got 3 rides in this weekend on ProCore. In summary, it’s everything I hoped for.
Installation: On LightBicycle carbon rims was a bear. It took me 90 minutes, leather home depot gloves to get a good grip on the tire, I was sweating buckets, and my hand was cramping. The supplied tire levers were a little flimsy and I only used them on the last little bit. The burlier wide Pedro’s levers were much more useful. Significant leverage was required. The video lies. It was hard. LB rims run a wee bit oversized I’ve heard.
Complaint: The valve should be longer. I was barely able to get 1 full revolution of thread engagement, and required pliers to pull up on the valve, in order to do so. Overnight, it settled and I was able to get another half turn. They sealed fine though without the valve, 60psi probably helps and it’s probably not really required. But still. With deep dish carbon rims being a major market sector. The valve should be longer!
The ride: Everything I hoped for and everything they said. The trails I ride are full of sharp pokey rocks. I have been unable to reliably run low psi (<30) without pinching through tubeless tires in the rear. Guaranteed every time. I rode all this weekend, 15 in the front and 22 in the rear. No issues. Ride quality of my bike and traction was SIGNIFICANTLY enhanced. I'm not worried about the extra weight. (Its lighter than the DH tube I've been running in the rear due to my unfixable pinched tubeless tires).
It very well may be overkill for the front tire, but it's certainly a ride enhancing insurance policy for carbon rims and not having to deal with pinched tires. And I'm sold on it's usefullness for the rear wheel. It was 100% awesome being able to bomb through rock gardens at low psi with confidence this weekend.
Downsides: Fixing a non-sealable flat with a tube on the trail would probably be a nightmare. Hopefully, the ride characteristics of riding on the 60psi procore is as doable as Schwalbe says. Or maybe the inner tire will stretch while installed (at 60 psi) and be easier to get off than it was to get on new. TBD.
The price: The kit comes with a lot of "fluff" most people won't need. "sealent made by Stans," rim tape, tire levers that aren't really needed. And I would bet that people may elect to only run procore in the rear wheel. So hopefully the price will come down soon and significantly.
Kudo's to Schwalbe for something pretty dang innovative, really useful, and very much ride enhancing.
I'll be racing BC Bike Race next week. Hopefully I still feel the same way at the end of the race.