Mmccallum profile

I don't think the rim can cut through the insert. It's sort of a dense material.  But amazingly light weight for its density.  I don't know how long it will last but I'd be surprised if it didn't last an entire season. 

I am on 2.3 with EXO.

Gille, I ran 24-26psi in the rear tire with a tubeless setup prior to Cushcore.  I found that I would pinch flat or even tear a sidewall if I went any lower.  I weigh 175-180 lbs.  I lowered the pressure as a test and found that the cushcore provided much more support than without.  The ride is not harsh at all.  Very dead feeling with expect to vibration and strikes.   Lots of sidewall support.  

Installing the system is tricky but once you figure it out (follow that video exactly) it isn't difficult.  But removing the tire is tough depending on your rim and how snug your bead is fixed to the rim.  You really need to follow the installation approach closely but in reverse.  Use a bucket or trash can and get some hefty tire irons or tools to push the bead down in the rim.  My bead was really fixed to the rim but once I broke it loose it was easy.

I hope to compare it to the Huck Norris and the Procore soon.  2 riding buddies are these.

Ok I now have a couple rides on the cushcore but only in the rear wheel.  I need a longer valve stem for the front rim.  I started out at 18psi and worked my way down to 14psi.  I found 15-16 psi to be my sweet spot for now.  I can still make it swish a bit when in the saddle on a big G-out turn but it isn't an issue.  You just feel the squish.  No burp and definitely no rim strikes.  It's pretty surprising actually since you expect the tire to just come off the rim but here Cushcore really supports the sidewalks well.  Today I took it down a very rocky course with sharp edges and  lots of speed is carried on this trail.  The best description I can give is that it has a "dead" feel.  And that is a good think.  It just slams into stuff and doesn't blink.  No deflection.  No rim strikes.  And the tire held up well (ikon 2.3).  I feel it helps to know what people are riding when they comment.  I was on a Santa Cruz Hightower in the 29" version.

Disclaimer: I haven't ridden the cushcore yet but I have installed it.  

Things to note, the valves are short for those tall carbon rims out there but the longer ones are on their way.  The current valves work well with most rims though as long as they are not too tall.  

The installation process is tricky at first but once you get the hang of it you can install the entire system in a matter of minutes.  Just follow the video closely the first time.  I found that it is very important to lube up the bead and really sink it down in the rim so as to give plenty of room to pull that last 8" over the rim.  Once the tire sealant is in the system any further tire changes are much easier since the sealant acts as a good lube.  

When removing a tire you must do the same.  Really push that bead down into the rim to make room for the tire to be pulled out over the rim.  

Must first tire sealed up super tight without sealant the first time.  It also held the air without leaking at all.  It made me wonder if I even needed sealant.  But I would still recommend the sealant.  Plus it makes any future tire changes much easier. 

First ride will be this evening under the full moon.  Stay tuned.