Alcatraz Bike

2020 Marin Alcatraz profile.

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  • Size Range: One Size

Dirt Jump

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Specifications

  • Frame

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

  • Front Suspension

    X Fusion Slant RL2 26", 100mm Travel, 100x15mm Thru-Axle, Air Spring, Compression and Rebound Adjust, Tapered Alloy Steerer tube, 40mm Offset

  • Rim

    Marin Custom Extrusion, 27mm Inner, Pinned Joint

  • Hub Rear

    Forged Alloy, 135x10mm, Bolt On, Quad Sealed Bearings, 6-Bolt Disc, 32H

  • Hub Front

    Forged Alloy, 100x15mm, 6-bolt Disc, 32H

  • Spokes

    14g Black Stainless Steel

  • Tires

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

  • Derailleur Rear

    -

  • Derailleur Front

    -

  • Shift Lever

    -

  • Crankset

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

  • Bottom Bracket

    External Sealed Cartridge Bearings

  • Chain

    KMC HL-710

  • Cassette

    14T Single Speed Cog

  • Brakes Front

    Tektro HDM275 Hydraulic, 160mm Rotor

  • Brakes Rear

    Tektro HDM275 Hydraulic, 160mm Rotor

  • Brake Levers

    Tektro HDM275

  • Handlebar

    Marin Riser, 6061 Double Butted Aluminum, 38mm rise, 750mm Width, 4º Up, 9º Back

  • Stem

    Marin 3D Forged Alloy, 40mm

  • Grips

    Marin Single Clamp Locking

  • Headset

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

  • Seatpost

    Marin Pivotal DJ, 30.9mm

  • Saddle

    Marin Pivotal DJ Saddle

  • Pedals

    Alloy Platform

  • Extras

    Marin Chain Tension Device

Geometry

Alcatraz Bike geometry diagram
ONE SIZE
STACK 575.5
REACH 401.84
HEADTUBE ANGLE 69°
HEADTUBE LENGTH 115
SEATTUBE ANGLE (EFFECTIVE) 71°
SEATTUBE LENGTH 320
TOPTUBE (EFFECTIVE) 600
BOTTOM BRACKET HEIGHT 317
BOTTOM BRACKET DROP 22
CHAINSTAY 395
WHEELBASE 1053.68
STANDOVER HEIGHT 650
FORK OFFSET 42
SEATPOST DIAMETER 30.9
HANDLEBAR WIDTH 780
STEM LENGTH 35
CRANK LENGTH 170

All lengths in millimeters

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