This is a nice front XC tire that I have been riding all fall and winter on my Niner Jet 9. It's a prototype Maxxis 29 x 2.35 XC tire. My prototype is the 120 tpi version eXC/3C, non EXO version. It is also availabe with the EXO more durable sidewalls for about 75 - 80g more in weight.
Check out the girth!
I've taken it on gravel, pavement, dirt, snow, ice, sand, leaves, mud, frozen ground, singletrack, doubletrack, and even out on a frozen lake. It's a keeper for sure.
What does this fat XC boy measure out to be on the Roval trail rim (tubeless)?
Casing width is 57.28mm (that's 2.2551181" for the non-metric Americanos)
Tread width is a nice 58.32mm (that's 2.296063" for the same crowd)
I get very similar measurements with other 2.25 tires I have (Racing Ralph 2.25 and Nobby Nic 2.25). The Nobby Nic 2.35 jumps about 2mm's wider - at least in casing width.
The tread width with the side knobs being wider than the casing width makes for a perfect front tire to roll the tire through the corners and get immediate dig from the slightly taller knobs. Well done!
I guess the "industry standard" measurement when popping a size label on a mountain bike tire is based on the standard of 60 psi and the use of a tube. I am running my tires tubeless and at a much lower psi (mid 20's) than the industry standard for my measurements. I personally would call this critter a 2.3 using the tread knob width. I have not tried it on a Flow rim - only on the Roval carbon trail rim which has a slightly narrower inner rim diameter than a Flow. Obviously, on even wider rims this tire can be called whatever one wants - a 2.3, a 2.35, etc... . Who knows what to call it basing the width on "industry standard" of 60 psi and with a tube? C'est la vie. I can't imagine that anyone in the year 2013 throughout the globe is running a larger volume mountain bike tire at 60 psi with a tube for off road riding.
How does it ride?
Fast. Fat. Confident. In fact, it really brings the front end of my JET alive. The knobs are a perfect height for a big front XC tire and it digs in better than my Ralph. The location of the side lugs give me cornering bite a tad sooner than my Nics do. This - I like.