2019 Marin

Alcatraz Frameset

A 26″ aluminum frame hardtail dirt jump frameset.

MSRP$1,299
FrameAluminum
SuspensionHardtail
ForkX-Fusion SLANT
Wheels26″
DrivetrainSingle-speed
BrakesHydraulic Disc
Where to Buy
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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 Frameset

20 mph

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Highest gear

(descending)

Sizing
One Size

3'11" +

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews
MTBR
Marin Alcatraz Dirt Jumper returns

Apr 2017

Anyone out there have a soft spot for dirt jumpers? Marin’s latest has great lines, a killer paint job, and was designed in conjunction with one of the best slopestyle riders. - Mtbr.com

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
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

Spring TypeAir

Bottom Bracket

External Sealed Cartridge Bearings

Headset

FSA Orbit, 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 30.9 Diameter 200mm length

TypeRigid

Pedals

---

Grips

Marin Single Clamp Locking

Groupset
Rear Derailleur

---

Front Derailleur

---

Crank

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

Shifters

---

Cassette

14T Single Speed Cog

Chain

KMC HL-710

Brakes

Tektro HDM275 Hydraulic, 180mm Rotor

TypeHydraulic Disc

Brake Levers

Tektro HDM275

Wheels
Spokes

14g Black Stainless Steel

Front Hub

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

Rear Hub

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

Tires

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

Rider Notes
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Last updated April 22
Not listed for 1,817 days