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2021 Marin

Alcatraz

A 26″ aluminum frame hardtail dirt jump bike with mid-range components.

Manufacturer Price

$1,579
FrameAluminum
SuspensionHardtail, 100mm
ForkX-Fusion SLANT
Wheels26″ Aluminum
DrivetrainSingle-speed
Groupset
BrakesTektro Hydraulic Disc
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

18 mph

Alcatraz

20 mph

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Highest gear

(descending)

Sizing
One Size

3'11" +

🐐 Estimated

Rider Fit Notes

None yet.

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Geometry
Specs
Build
Frame

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

BB StandardBSA, 73mm, Threaded

ColorGloss Magenta / Cyan/hi-Vis Yellow/black

Fork

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

Travel100mm

Spring TypeAir

Shock

-

Bottom Bracket

External Sealed Cartridge Bearings

Headset

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

Stem

Marin 3D Forged Alloy, 40mm

Handlebar

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

Saddle

Marin Pivotal DJ Saddle

Seatpost

Marin Pivotal DJ, 30.9mm

TypeRigid

Pedals

Alloy Platform

Grips

Marin Single Clamp Locking

Groupset
Rear Derailleur

-

Front Derailleur

-

Crank

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

Shifters

-

Cassette

14T Single Speed Cog

Chain

KMC HL-710

Brakes

Tektro HDM275 Hydraulic Disc Brake, 160mm Rotor

TypeTektro Hydraulic Disc

Brake Levers

Tektro HDM275

Wheels
Rims

Marin Custom Extrusion, 27mm Inner, Pinned Joint

Front Hub

Forged Alloy, 100x15mm, 32H

Rear Hub

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

Tires

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

Rider Notes
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First added December 23

Last updated August 6

Not listed for 1,746 days