Marin Bikes
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Marin Alcatraz Bike 2021

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Item #: BI001198
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Marin Alcatraz 2021 Bike

Jump and pump around your favorite dirt jumps

The Marin Alcatraz Dirt Jump bike was designed hand in hand with slopestyle superstar Matt Jones. The frame features modern dirt jump geometry including a short chain-stay length and steep headtube-angle which makes the bike super easy to trick and maneuver. The 6061 Aluminum frame is overbuilt to handle the abusive demands of slopestyle riding and features an X-fusion Slant air fork which can be pumped up stiff. The single-speed setup is simple and light and it’s all you need for a dirt jump bike. Marin designed the Alcatraz with the intent of creating the best dirt jump hardtail you’ve ever ridden.

Review

VitalMTB - " This hardtail frame features sliding dropouts for your single-speed builds but it also has a tab should you wish to run a derailleur. This bad boy retails for $1,100 and you could be sending it like Matt."

PinkBike - "Marin's return to form is welcomed and the iconic brand has released and produced plenty of great bikes recently. Their new Alcatraz has been designed and developed with input from Matt Jones, the UK dirt jump and slopestyle star."

Bike Magazine - " The Alcatraz is a 6061 alloy single-speed or multi-speed compatible 26-inch hardtail worthy of the custom treatment. But to bring it to the masses, Marin decked it out for 2019 with a sweet but smart build kit."

Features

  • Stiff aluminum frame overbuilt to handle the abuse of dirt jump riding
  • X-Fusion Slant air fork which can be pumped up stiff for jumps and pump tracks
  • Chain tensioners keep the single speed chain tight
  • Short chain stays give the bike a quick and snappy feel
  • Steep head angle makes the bike easy to trick and spin
SPECIFICATIONS
Frame Series 3 6061 Aluminum Frame, 26” Wheels, 135x10mm Horizontal Dropouts, Single Speed or Geared
Fork X Fusion Slant 26 DJ, 100mm Travel, 100x15mm Thru-Axle, Air Spring, Compression and Rebound Adjust, Tapered Alloy Steerer tube, 40mm Offset
Headset FSA Orbit, Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
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
Brake Tektro HDM275 Hydraulic, 160mm Rotor
Wheelset Marin Custom Extrusion, 29mm Inner, Pinned Joint, Forged Alloy, 135x10mm, Bolt-On, Quad Sealed Bearings, 6-Bolt Disc, 32H
Tires Vee Tire, XCV 26x2.25, LSG Compound, Wire Bead
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
Seatpost Marin Pivotal DJ 30.9 Diameter 200mm length
Saddle Marin Pivotal DJ Saddle
Intended Use Dirt Jump Pump Track

Note: Components are subject to change without notice.

Geometry and Size Guide

Size One Size
A: Seat Tube Length 320
B: Effective Top Tube 600
C: Stack 575.5
D: Reach 402
E: BB Height 317
F: BB Drop 22
G: Head Tube Length 115
H: Head Tube Angle 69 °
I: Seat Tube Angle 71 °
J: Standover Height 650
K: Chainstay Length 395
L: Wheelbase 1053.68
Crank Arm Length 170 mm
Stem Length 35 mm
Handlebar Width 780 mm
Size One Size
A: Seat Tube Length 12.6
B: Effective Top Tube 23.6
C: Stack 22.7
D: Reach 15.8
E: BB Height 12.5
F: BB Drop 0.9
G: Head Tube Length 4.5
H: Head Tube Angle 69.0 °
I: Seat Tube Angle 71.0 °
J: Standover Height 25.6
K: Chainstay Length 15.6
L: Wheelbase 41.5
Crank Arm Length 170 mm
Stem Length 35 mm
Handlebar Width 780 mm
 

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CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

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