Look launch disc brake version of the 785 Huez RS, with 28mm tubeless tyres

Look have launched the 785 Huez RS disc range, with 28c tubeless tyres specced on all models and flat mount disc calipers that have Mavic's Speed-release system for rapid wheel changes. 

Look launch 785 Huez RS super light road bike
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Look have chosen five different types of carbon to create the high modulus lightweight frame, and have used the flat mount disc brake standard front and rear to reduce weight and allow for direct attachment of hydraulic calipers. The reason for going wide and tubeless throughout the range is "to get full benefit from more effective braking", according to Look. They also say you get better grip from 28c tyres with their larger contact patch and the ability to run lower pressures for added comfort in the mountains. Look's tyre of choice is the Hutchinson Eleven Storm (read Dave Arthur's glowing review here.)

To optimise rigidity 12mm thru-axles are used, and Look have specced Mavic's Speed-release thru-axle system; they say this allows for removal of a wheel twice as fast as with a traditional thru-axle, which is equally good news for team mechanics and those who frequently travel with their bikes.    

There are five 785 Huez RS disc full bikes available, with the top-of-the-range spec featuring Sram eTap and Vittoria Elusion carbon wheels; the most affordable version comes with a Shimano 105 groupset and Mavic's Aksium Elite wheels. All bikes come with 160mm disc rotors at the front and 140mm at the rear. 

Look haven't given any weights yet, but the rim brake version launched last year had a 730g frame and can come in at under 5.9kg with top-end components. It's safe to say even with disc brakes the latest 785 Huez RS could be right on the UCI limit, not that it's an issue at the moment; Look bizarrely parted ways with the Fortuneo-Samsic team, now riding BH, a fortnight before the start of the Tour de France...