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    Marin Alcatraz Frame Kit - 2021


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    The Alcatraz was designed from the ground up to be the best dirt jump and slopestyle bike you have ever ridden. We worked handin-hand with Matt Jones to define the exact needs of a modern dirt jump frame, and are proud to release the complete Alcatraz into the world. The 6061 Series 3 aluminum alloy frame is stiff and overbuilt for abuse, with a tapered headtube and 135x10mm horizontal drop outs.

    PERFECT FOR

    • DIRT JUMPS
    • SLOPESTYLE
    • PUMP TRACK
    • SKATE PARK

    WHEEL SIZE: 26"
    SIZE RANGE: One Size
    COLOR: Gloss Magenta/Cyan/Hi-Vis Yellow/Black 

    IF MATT JONES SAYS IT’S GOOD... What better way to know a product will perform than having it proven on the FMB World Tour by Matt Jones? Check out the Red Bull-produced “Frames of Mind” to see the Alcatraz proving its mettle.

    “THE BEAUTY OF THIS PARTNERSHIP IS THAT THERE WERE
    NO GUIDELINES TO WORK WITH OTHER THAN CREATING
    THE ULTIMATE DIRT JUMP FRAME FOR MYSELF TO
    PERFORM ON. THAT’S WHAT MAKES THE MARIN
    ALCATRAZ SO SPECIAL TO ME.”
    –MATT JONES, WIDE OPEN MOUNTAIN BIKE

    - ALCATRAZ TECHNOLOGY -

    • SERIES 3 ALUMINUM FRAME
      The Alcatraz features a 6061 Series 3 alloy frame, with a burly double butted tubesets for the best ride quality and stiffness, tapered headtubes for maximum strength on big jumps, and horizontal drop out with slotted IS disc brake tabs.

    • SHORT CHAINSTAYS
      We have optimized the chainstay length of the Alcatraz to make sure you can have the shortest chainstays possible, giving you the ability to pop a wheelie or manual anywhere at anytime.

    • 135X10MM HORIZONTAL DROPOUTS
      The Alcatraz features 135x10mm horizontal dropouts — the standard in dirt jump technology for axle and dropout strength.

    • DIRT JUMP SPECIFIC SUSPENSION FORK
      100mm travel X-Fusion Slant DJ-specific fork with air spring, compression and rebound damping, and tapered alloy steerer tube.

    - TECHNICAL SPECIFICATIONS -

    Frame Series 3 6061 Aluminum Frame, 26" Wheels, 135x10mm Horizontal Dropouts, 73mm Threaded BB, ISCG 05 Tabs
    Headset FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2"
    Extras Marin Chain Tension Device

    - MARIN GEOMETRY -

    Head Tube Angle 69
    Head Tube Length (mm) 115
    Seat Tube Angle 71
    Seat Tube Length (mm) 320
    Top Tube Effective (mm) 600
    BB Height 317
    BB Drop 22
    Fork Offset (mm) 42
    Stand Over Height 650
    Wheel Base 1053.68
    Chain Stay (mm) 395
    Seat Post Diameter 30.9
    Stack 575.5
    Reach 401.84
    Handlebar Width (mm) 780
    Stem Length (mm) 35
    Crank Length 170


    - WARRANTY -

    We're an authorized Marin dealer, which means that every bike we sell is backed by Marin's warranty, including a one-year complete bike warranty and a five-year frame warranty.  For full details, click here.