Marin Bikes

Alcatraz 1

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Marin Alcatraz 1 profile.

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  • Price: $1,399*
  • Wheel Size: 26"
  • Frame: Aluminum
  • Size Range: Short, Long
  • Manufacturer’s suggested retail price may not include additional shipping or preparation charges. Please contact your local Marin dealer for a quote.

The Alcatraz 1 allows the rider to follow in Matt Jones’ footsteps to build and personalize the best dirt jump bike possible. At home boosting your local 6-pack, ripping up the pump track, or hitting the local skate park the Alcatraz has what you need to take care of business.

The Series 3 aluminum frame is built for the hard knocks and is stiff enough for lightning-fast acceleration and tough enough for the heavy hits. Short stays keep manuals easy and ambidextrous cable routing means you can run your brake on the left or right of the bars. There’s a suspension-corrected CrMo fork, front and rear Tektro disc brakes, Vee Tire rubber and plenty of bombproof Marin components. Best of all, it’s available in two frame sizes, regular and long.

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Specifications

  • Frame

    Series 3 6061 Aluminum, 26” Wheels, 135x10mm Horizontal Single Speed Dropouts, 73mm Threaded BB, ISCG 05 Tabs

  • Fork

    Marin Series 2 CroMo 26", Suspension Corrected, 100x9mm Dropouts

  • Rear Suspension

    -

  • Rims

    Marin Custom Extrusion, 27mm Inner, Pinned Joint

  • Hub, Rear

    Forged Alloy, 135x10mm, Bolt-On, Quad Sealed Bearings, Disc, 32H

  • Hub, Front

    Forged Alloy, Bolt On 3/8" Axle, 100mm Spacing

  • Spokes

    14g Black Stainless Steel

  • Tires

    Vee Tire Co. XCV 26x2.25”, LSG Compound, Wire Bead

  • Derailleur, Rear

    -

  • Derailleur, Front

    -

  • Shift Lever

    -

  • Crankset

    Marin Forged Alloy, Alloy 32T Chainring, 104mm BCD

  • Bottom Bracket

    External Sealed Cartridge Bearings

  • Chain

    KMC HL-1

  • Cassette

    14T Single Speed Cog

  • Brake, Front

    Tektro MD-M280 Mechanical Disc 160mm Rotor

  • Brake, Rear

    Tektro MD-M280 Mechanical Disc 160mm Rotor

  • Brake Levers

    Tektro CL-330TS Alloy

  • Handlebar

    Marin Riser, 6061 Double Butted Aluminum, 31.8mm at center bulge, 38mm Rise, 750mm Width, 4º Up, 9º Back

  • Stem

    Marin 3D Forged Alloy, 31.8mm clamp, 40mm extension

  • Grips

    Marin MTN, Closed End

  • Headset

    FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”

  • Seatpost

    Marin Alloy, 30.9mm

  • Saddle

    Marin DJ Saddle

  • Pedals

    Alloy Platform

  • Extras

    Marin Chain Tension Device

Specifications, pricing, and availability are subject to change without notice.

Geometry

Alcatraz 1 geometry diagram
Short Long
Stack 575 580
Reach 385 430
Headtube Angle 69° 69°
Headtube Length 115 120
Seattube Angle 69° 69°
Seattube Length 320 320
Toptube Effective 600 646
BB Height 317 317
BB Drop 22 22
Chainstay 395 395
Wheelbase 1037 1083
Standover Height 370 400
Fork Offset 42 42
Seatpost Diameter 30.9 30.9
Handlebar Width 750 750
Stem Length 40 40
Crank Length 170 170

All lengths in millimeters

Technology

Marin Alcatraz headtube image

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.

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Marin Series 3 aluminum decal on the Alcatraz chainstay

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.

Rear dropout and brake image of the Marin Alcatraz

135X10MM HORIZONTAL DROPOUTS

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

Front 3/4 view of the Marin Alcatraz

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.

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