21 Alcatraz Dirt Jump

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The Marin Alcatraz is a true dirt jump and slopestyle beast that was co-designed by the UK legend that is Matt Jones. The 6061 aluminium framed DJ bike is designed to take a kicking and come back looking for more. If you want to send tailwhips and backflips all day, then this is the bike for you.

The Alcatraz helps to highlight Marin's recent return to form, the Alcatraz is the dirt jump bike you want and need in your life. It comes with pretty sensible geometry for charging huge slopestyle courses, but will also be fun for an afternoon playing at your local pump track.

Matt Jones is famous for trying to keep his bike as light as possible, and that may well be part of the reason for why Marin’s previous steel DJ bike has turned into a lightweight aluminium beast. The frame looks positively industrial, and the big aluminium welds help to reinforce the idea that this bike can take a lot of punishment.

With a 69° headtube you have a bike that will perform on a dime but not have you feeling like you’re going to go over the bars with every awkward landing. The wheelbase on the bike is also short, coming in at 1053.68mm. As the frame has horizontal dropouts, you can leave the back wheel slammed if you want to make the bike easy to spin, or lengthen it if you just want to boost in a straight line, it’s always nice to have choices.

The X-Fusion Slant 26 DJ fork will help you land those airs and save your wrists from getting too blown out. With 34mm stanchions they will also help to cut down on flex when things get a bit squirrely. They are air sprung, so they are easy to set up to get the feel you want whether that is a stiff fork that almost feels locked out or a slightly more free fork that sucks up every single landing.

To prove that 26 ain't dead yet, Marin has created a custom extrusion for their rim that goes on the wheels for the Alcatraz. The rear wheel also only comes with a 14t rear cog, because that is all you need for when you’re out shredding the gnar. Well, you might prefer a different cog size, but all you need is one gear for dirt jumping, and it is a few parts less for you to break when you have that inevitable slam. If you don’t slam, you aren’t trying hard enough.

On the wheels, you’ll find a set of Vee Tire’s XCV tyres. These tyres have very little rolling resistance and will keep you sailing through a set of rhythms with no issues. These use Vee Tire’s Low Specific Gravity compound, this is a lightweight compound that Vee Tire designed for BMX bikes, so you know it’ll be right at home on this trail slayer.

The Alcatraz comes with a set of Tektro HDM275 hydraulic disc brakes, with a 180mm rotor at the front and a 160mm rotor at the rear. We can also be pretty sure you might just be ditching the front one as soon as you hit a set of trails or a pump track. Just don’t ride along the road if you do.

The Marin Alcatraz will set all budding dirt jumpers on the right path. You’ll find the bike easy to get to grips with riding and it’ll also push your riding to new limits. All you need to do now is head down your local spot and get ready to send it.


Wheel Size 26"
Frame Material Aluminum
Frame Material Details Series 3 6061 double-butted aluminum
Rear Travel Hardtail
Rear Shock N/A
Fork X-Fusion Slant RL2, air spring, compression and rebound adjust, 40mm offset, thru-axle
Fork Travel 100mm
Head Tube Diameter Tapered, 1.125" top, 1.5" bottom
Headset FSA No. 57E, semi-sealed cartridge bearings
Handlebar Marin Riser, 6061 double-butted aluminum, 750mm width, 4° upsweep, 9° backsweep, 38mm rise
Stem Marin 3D forged alloy, 40mm length
Grips Marin single clamp lock-on
Brakes Tektro HDM275 hydraulic, 160mm rotors
Brake Levers Tektro HDM275 hydraulic
Drivetrain 1x
Shifters N/A
Front Derailleur N/A
Rear Derailleur N/A
Chainguide N/A
Cranks Marin forged alloy, 104mm BCD, standard spacing, 170mm length
Chainrings Marin alloy, 32 tooth
Bottom Bracket External, sealed cartridge bearings, 73mm threaded
Pedals Alloy platform
Chain KMC HL-710
Cassette 14 tooth singlespeed cog
Rims Marin custom extrusion, 27mm inner width, pinned joint
Hubs Forged alloy, 6-bolt disc mounts, 32 hole, 100x15mm front, 135x10mm bolt-on rear (quad sealed)
Spokes 14g stainless steel, black
Tires Vee Tire Co XCV, LSG compound, wire bead, 26" x 2.25"
Saddle Marin Pivotal DJ
Seatpost Marin Pivotal DJ
Seatpost Diameter 30.9mm
Seatpost Clamp Single bolt
Rear Dropout / Hub Dimensions 135x10mm horizontal bolt-on, with chain tensioner
Max. Tire Size
Bottle Cage Mounts No
Colors Gloss Magenta/Cyan/Hi-Vis Yellow/Black
Warranty Lifetime frame; 1 year components, paint and decals
Weight N/A
Miscellaneous External cable routing

We ship nationwide throughout New Zealand.

$10.00 Standard Shipping (Purchases up to $100)
$15.00 Rural Shipping Rate (Purchase up to $300)
$40.00 Shipping Rate (Purchases $300+)

Bike delivery can take 5-7 working Days from Date of purchase - (does not included weekends.)

Shipping Options ( Bikes ) North Island $50.00 - South Island $30.00)

E-Bikes Please call as Each Courier has different Policies. Please ask about Saturday and Urgent Delivery Options.
 New Zealand




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