Check out John K’s testing of the 2.1 - much better than anything BRR has.
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100% agree with this. There are just better options than the Burt. Maybe with the exception of the 2.1 for smooth gravel.
You have a link to this or post #?
@jkarrasch here on the forum. flexfitbyjohn on IG is where he posts most of his tests.
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He sure has a lot of stuff in his page. I couldn’t find his protocol though other than “Chung method”…..does he have it anywhere?
Joe
What size tires did you test?
2.4 dub 2.35 tb
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Hey Joe, also have it on main blog HERE
As far as discussion here no way I’d run a TB at Leadville. Discussed this a bit with the Leadville 100 podcast on most recent episode HERE
LMK of any questions
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Tb 2.35 is not bad as for a rear tire at Leadville. Definitely flat risk though. It would be bold as a front tire though
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Rick front / tb rear! Awesome combo, never had issues with the TB, but I’m 145 and I usually get rid of tires before they are done
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What kind of psi do you run at 145? I’m slightly heavier and use 15f-17r.
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Has anyone ran the dubnitals in the mud yet?
Conditions have changed in Uk and it’s looking very wet this weekend.
Radial racing ricks are being tested
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I’m interested in how the Dubs are handling sharp rocks etc. I see they had some flats at Unbound
I flatted a 2.2 Race King Protection at Unbound this year, some of the sharp little bits out there will get you no matter what tire you’re on. Fairly clean puncture right in the center of the tread while grinding up a flinty hill.
I’ve got a set of 2.4 rapid race’s on order and hope to give them a proper thrashing before Leadville.
I had a discussion with the Conti guy at Unbound specifically on the question of Dub Rapid Race durability vs. Race King. He definitely wasn’t claiming the Dub RR was more durable with the different casing and it was basically a TBD whether it’s similar to the RK Protection. All the performance results I’ve seen on the Dub Rapid Race 2.2 show it to be similar in speed to the RK Protection 2.2. I’ve bought an extra set of 2.2 RK’s since it’s still TBD on the Dub durability and the new tires don’t initially seem to be measurably faster. I plan to run the 2.4 Dubs at Leadville this year if they prove reasonably durable, it’s not a course that destroys tires unless you really bang down the descents.
This is the exact same reason I asked the question - Leadville. I’d prefer a 2.4 to a 2.2 but St Kevin’s decent is the question. Elsewhere not an issue generally.
Same 
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Wanted to update on the Mezcal 2.6, it actually hasnt left my bike this year, and Im converted to a high volume believer for XC bikes. As a bigger rider, I’ve never “got” what folks are getting out of correct tire pressures, I’ve had to run over 30 psi for as long as I can remember, and lately with more wight, an insert. With the 2.6 I started in more of the normal mid to upper 20’s range, no insert. It feels like an incredible amount of travel has been added to the bike, its on a hardtail, so even more amplified. It feels faster, and easier to pedal through the rough stuff, especially the type where theres not much “height” but lots of roots and sharp rocks, feels like im floating on a pocket of air, you know like… pneumatic tires. I did manage to pinchflat on a square edge when the pressure had dropped to the low 20’s and I was getting a bit overconfident in them, but it sealed up ok.
Back to the mezcal, I dont think this tire is super fast, its not slow, but its hard to compare now, as there is too much change in volume (and fitness) for me to really comment on that. That said, its super grippy, mezcal is the opposite of a mud tire but it did pretty great in mud, this might be due to the wider spacing than the normal mezcal.
I think this is the ultimate bikepacking tire, fast on roads, can handle mud, and durable. For me, I’m just enjoying the volume experiment.
I have a 2.5 mile XC course in the backyard, so once it gets a bit dryer, I’m going to do back to backs I think, not really for time (I will time it of course) but to feel it out a bit.
I have this paired with the booster pro 2.6 in the front currently, not nearly as big volume as the 2.6 mezcal, but I do like it as a front. Will try as a rear soon, as I think it might be faster than the mezcal for what I ride, despite the mediocre BRR test results.
I havent tried the 2.6 rekons yet, but those are really for trying to make the XC bike a bit more fun, not faster.
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No flats for me using the race rapid
Big test for them this weekend with a bit of mud.
Did you ask him about the trail casing Vs the protection?
I’m waiting on this to order some really.n
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