http://www.bikerumor.com/2013/06/06/new-schwalbe-thunder-burt-xc-mountain-bike-tire-unveiled/#more-61069

Looks like the perfect dry weather tire. Race day only though, even the RaceGuard version probably not as tough as the Racing Ralph.

Hopefully they do a 2.25 version soon too. Schwalbe usually wait a year before rolling out more sizes on new treads.

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Start flat out ... then pick the pace up halfway

What is this 'dry weather' of which you speak?

I wonder if they'll make a tubular version, to go with the Ralph HT.

Reminds me of the Panaracer Driver Pro a bit. Great to have a growing selection of fast tyres for 650b.

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Bikes: Raceur, Haqueur, Grindeur

I would call that a semislick. My racing ralph last about 1000Km, this must be half of that. Definitely a race and dentist tire.

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Happy Trails !!!

Dentist as in going over the bars when the front washes out at speed, and then going to the?

Has anybody for sale anywere yet ? We have a 100 km-R coming up early september and love to give them a run !

These tires won't be released before mid September.

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Colnago extreme-C Scott Addict SL

Eurobike show i believe they are launcheing the tyre then!

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Just keep Pedaling

If you're interested in these and need prior to availabile consider the Hutchinson Black Mamba.

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Grover's Grumblings
Grover's Garage

Rang the australian distributor, they have arived this week and one pai is on the way To my place (;

There's no way I'm putting something that spells 'thunder burt' in 4 places on my bike.

roughly 430 gram a pop on the kitchen scale, they look really fast i see if they hold sweet lines tomorrow

Which version are these on the scale?

Onza Canis is another very similar tyre which I quite like on the rear

Nope! Onza Canis has a much more coarse thread.

Onza Canis is 120TPI and Schwalbe 127TPI. I don't think you will notice the differences in 7 threads per inch! I feel the Onza casing is far more supple than my Racing Ralph casing, almost like having a puncture for the same tyre pressure!

If you mean "tread" then the Canis XC is actually very similar. Maybe fewer knobs but in the real world very little practical difference.