2019 Marin Alcatraz

The Alcatraz was designed from the ground up to be the best dirt jump hardtail you have ever ridden. We worked handinhand 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 aluminum frame is stiff and overbuilt for abuse, with a tapered headtube and 135x10mm horizontal dropouts with a chain tension device for either single speed or geared builds.