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The Alcatraz was designed to be the best dirt jump and slopestyle bike you have ever ridden. Marin worked hand in hand with Matt Jones to define the exact needs of a modern dirt jump frame. The 6061 Series 3 aluminum frame is built for the hard knocks and is stiff for lightning-fast acceleration and tough 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.
Accessories: | Marin Chain Tension Device. Marin MTB Seat Clamp, Bolt Type |
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Frame: | Series 3 6061 Aluminum Frame, 26” Wheels, 135x10mm Horizontal Dropouts, 73mm Threaded BB, ISCG 05 Tabs |
Headset: | FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2” |
Short | Long | |
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Stack | 575 | 580 |
Reach | 385 | 430 |
Head Tube Angle | 69° | 69° |
Head Tube Length | 115 | 120 |
Seat Tube Angle | 69° | 69° |
Seat Tube Length | 320 | 320 |
Top Tube Effective | 600 | 646 |
BB Height | 317 | 317 |
BB Drop | 22 | 22 |
Chain Stay | 395 | 395 |
Wheel Base (with 26" wheels) | 1037 | 1083 |
Stand Over Height (with 26" wheels) | 370 | 400 |
Fork Offset | 42 | 42 |
All lengths in millimeters
Marin Bikes are Made For Fun. Since the first mountain bikes bearing the Marin name debuted in 1986, the brand has been dedicated to enriching the lives of riders by making fun, high caliber bicycles, which provide years of riding enjoyment. They operate their business based on hard work, fueled by passion, and fulfilled by the satisfaction of bringing the joy of cycling to riders across the world.
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Please note, due to challenges in the product supply chain, bike specifications are subject to change without notice. Specifications listed below may not match exactly as shown in the photo.