2025 Marin Alcatraz Frame Kit

*Contact us about ordering!  We can ship to your address after we receive it to our shop

DIRT JUMPS

SLOPESTYLE

PUMP TRACK

SKATE PARK

The Alcatraz allows the rider to follow in Matt Jones’ footsteps to build and personalize the best dirt jump bike possible. At home boosting your local 6 pack, ripping up the pump track, or hitting the local skate park the Alcatraz has what you need to take care of business.

Size Rider height range
Short - 5'1" to 5'9"
Long - 5'6" to 6'3"

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.

SHORT CHAINSTAYS

We have optimized the chainstay length of the Alcatraz to make sure you can have the shortest chainstays possible, giving you the ability to pop a wheelie or manual anywhere at anytime.

135X10MM HORIZONTAL DROPOUTS

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

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.

Specifications, pricing, and availability are subject to change without notice.