Focus Mares CX Disc Ultegra

The Focus Mares CX Disc Ultegra cyclocross bike is the brand's next to top of range crosser. We've put it through its paces in early season races and longer off road rides




  • Light
  • Confident handling
  • RAT thru-axles give quick wheel changes


  • A bit stiff off road
  • Not tubeless ready tyres

Price as reviewed:


  • Frame

    Focus has a real cyclocross pedigree, having been founded back in 1992 by three times world cyclocross champion Mike Kluge. Its Mares is a bike with a full carbon frame with internal cable routing. It’s got a flattened top tube which is comfortable for extended shouldering and a tapered head tube.

    Ultegra groupset comes with cyclocross-specific ratios

    Ultegra groupset comes with cyclocross-specific ratios

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    The bike that we’ve tested is the 2016 model, but the 2017 has moved from a 15mm to a 12mm front thru-axle and Focus has redesigned the fork with internal brake hose routing and flat mount brakes.


    The Focus comes with Ultegra shifting and Shimano’s neater looking RS685 hydraulic shifters. There’s some shock absorption built into the frame and more at the seatpost, where Focus fits its carbon CPX design with a Y-shaped split head. There’s also a carbon stem and Fizik Cyrano bars and Aliante saddle.

    >>> Shimano Ultegra groupset review (video)

    DT Swiss wheels run on Focus's RAT thru-axles

    DT Swiss wheels run on Focus’s RAT thru-axles

    The thru-axle wheels are DT Swiss tubeless ready R24 Splines, shod with rather smart-looking (but not tubeless-ready) tan sidewalled Schwalbe Rocket Ron tyres. Focus uses its own RAT axles on the Mares. They are designed for very fast removal: the system has been timed at 12 seconds for a wheel change in an MTB race.

    >>> New Focus Paralane endurance road bike launched

    RocketRon tyres are not tubeless ready, unlike the wheels

    RocketRon tyres are not tubeless ready, unlike the DT Swiss wheels


    The Mares has proved a steady ship in its race outings. It corners predictably and the light but sturdy frame means it is both easy to lift over the hurdles and to lay down the power on the straights. The flip side is it’s not the most cushioned of rides, even with the CPX seatpost.

    Watch: Guide to cyclocross bikes

    The robustness of the build also plays out through its components. Those chunky levers offer a reassuring grip, a chain guard has prevented de-shipment and the thru-axles make the disc brake performance all the more solid.

    >>> Pro bike: Domenico Pozzovivo’s Focus Izalco Max (video)

    Focus's CPX split seat post head adds a bit of compliance to the ride

    Focus’s CPX split seat post head adds a bit of compliance to the ride

    While Schwalbe’s Rocket Rons are a good fast race tyre on dry, grassy early-season courses, one of them did blow out on a rocky dirt track during into an off-road touring trip.


    A quality cyclocross frame and components, although not as compliant over the rough stuff as some of its competitors


    Frame: Mares CC P2T 10 carbon
    Fork: Mares CC P2T 10 carbon
    Size range: XXS – XL
    Size tested: L
    Weight: 8.4kg/18.4lb
    Groupset: Shimano Ultegra
    Gear ratios: 46/36, 11-28
    Wheels: DT Swiss R24 Spline, tubeless ready
    Brakes: Shimano RS685 hydraulic
    Tyres: Schwalbe Rocket Ron Evo Focus Edition 33mm
    Bar: Fizik Cyrano R5
    Stem: Focus CPX carbon
    Seatpost: Focus CPX Plus carbon
    Saddle: Fizik Aliante