Geax Barro Race 29″er Tire: On Test

March 16th, 2009 by Guitar Ted

Twenty Nine Inches just took delivery of some Geax 29″er tires. This time it is the Barro Race with the TNT bead and sidewalls. TNT is Geax’s version of tubeless ready that they call “Tube-No Tube”, thus the “TNT” moniker. The Barro Race is billed as a cross country racing tread or hardpack trail tire that features a 2 inch width. The tread is quite open and the knobs are arranged on a chevron type pattern.

Geav Barro Race
The Barro Race is Geax’s second tread pattern for 29″ers.

TNT sidewalls and bead
The Barro Race will be available in three versions. This is the TNT version.

The Barro Race will come in three versions: The folding bead version, which will be the lightest at around 425 grams, the TNT version, which weighed 630 grams on our digital scale, and the UST version which will weigh more yet, probably in the mid 700 gram range. Geax promised us that the Barro Race would be a “true two incher”, so we will get to mountng these up, tubeless of course, and we will report back. Stay tuned………..

Possibly Related Articles:

10 Responses to “Geax Barro Race 29″er Tire: On Test”

RSS

1 Jeff on Mar 16th, 2009 at 11:20 am

When should we be able to purchase these? The 425g folding version sounds excellent.
2 Cloxxki on Mar 16th, 2009 at 3:22 pm

Lighter than the super-minimalist Crows? Wow.
3 t0m on Mar 16th, 2009 at 6:41 pm

The 29″ TnT tire I want Geax to make is the 2.3 Barro Marathon. It has softer rubber than Geax’s XC compound. They could even make it in a 2.2- it’s my fave all-arounder in 26″ (though it wears kinda quick). Geax makes seriously underrated tires.
4 Davidcopperfield on Mar 16th, 2009 at 9:16 pm

Does it suffice to run an ordinary tyre 425 grams with tubeless liquid or TNT version is minimum for tubeless application?
5 Guitar Ted on Mar 16th, 2009 at 9:59 pm

Jeff: The tires should be available in a few weeks.

Cloxxki: Yeah, and these actually have knobs! Go figure….

t0m: Look for a bigger Geax trail tire to be introduced in 29″er size real soon. (Hint: “meow” )

Davidcopperfield: The Barro Race folding bead is meant to be run with tubes. Yes, the TNT is the lightest designed to be run tubeless.
6 Jeff on Mar 17th, 2009 at 6:47 am

Good to know on the availability, thanks GTed.

While Geax suggests the TnT version as the lightest for tubeless use, the regular folding model Saguaro has been one of the most reliable (and easiest to set up) tires for tubeless use.
7 paragonjeff on Mar 17th, 2009 at 2:04 pm

i run these on my Gordo’s and i love them.
8 chris_geotec on Mar 17th, 2009 at 4:50 pm

I have jad the chance to ride both 29er by GEAX currently available in folding and TNT and the real advantage with TNT besides easy inflation is the ability to run extremely low pressures (at 85 kg I have ridden the Saguaro down to 1,4 bar) without risking blow offs or fear burping. Has anyone tried the same on a converted folding – not good, very unstable. The Barro Race requires more pressure due to the smaller size but is an extremely capable race tire.

Ps: For those whishing for a larger tire with a more aggressive tread – hang in there, it will not be long, but it will definetely be worth it.
9 Davidcopperfield on Mar 19th, 2009 at 10:47 pm

May the above be said about TNR vs UST? UST will be better at lower pressure than TNT, won’t it?
10 Guitar Ted on Mar 19th, 2009 at 11:38 pm

Davidcoperfield: UST has a stiffer sidewal, certainly. I would think very low pressures would be attainable, but at the expense of more weight. I believe the best balance of weight, tire pressure, and performance is with TNT.