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The Alcatraz was designed from the ground up to be the best dirt jump and slopestyle bike you have ever ridden. We worked hand-in-hand with Matt Jones to define the exact needs of a modern dirt jump frame, and are proud to release the complete Alcatraz into the world. The 6061 Series 3 aluminum alloy frame is stiff and overbuilt for abuse, with a tapered headtube and 135x10mm horizontal drop outs. Available as a complete bike or a frame kit, so you can get the bike of your dreams for throwing big whips and flips.

Technology

SERIES 3 ALUMINUM FRAME

The Alcatraz features a 6061 Series 3 alloy frame, with a burly double butted tubesets for the best ride quality and stiffness, tapered headtubes for maximum strength on big jumps, and horizontal drop out with slotted IS disc brake tabs.

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Marin Series 3 aluminum decal on the Alcatraz chainstay

SHORT CHAINSTAYS

Chainstay lengths are optimized at 395mm to make sure you can have the shortest possible, giving you the ability to pop a wheelie or manual anywhere at anytime.

Marin Alcatraz dropout detail

135X10MM HORIZONTAL DROPOUTS

The Alcatraz features 135x10mm horizontal single speed only dropouts — the standard in dirt jump technology for axle and dropout strength.

Marin Alcatraz 1 frame detail, highlighting internal cable routing

AMBIDEXTROUS INTERNAL ROUTING

The location of the internal routing port allows for the rear brake to be located on the left or right hand side of the handlebars.