Marin Alcatraz Frame Kit - 2025

The foundation for the Alcatraz build of your dreams. The Series 3 aluminum frame is built for the hard knocks and is stiff enough for lightning-fast acceleration and tough enough for the heavy hits. Short stays keep manuals easy and ambidextrous cable routing means you can run your brake on the left or right of the bars.

The Main Alcatraz frame kit comes supplied with an FSA headset, Marin chain tension device and Marin seat clamp. Available in two frame sizes, regular and long.

Specifications
Frame Series 3 6061 Aluminum, 26” Wheels, 135x10mm Horizontal Single Speed Dropouts, 73mm Threaded BB, ISCG 05 Tabs
Headset FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
Extras Marin Chain Tension Device
Extras Marin MTB Seat Clamp, Bolt Type
Specifications, pricing, and availability are subject to change without notice.