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- Lightweight aluminum frame construction
- Responsive hydraulic disc brakes
- Durable 26-inch wheels for stability
- Adjustable suspension for smooth rides
- Stylish blue fade finish
The Alcatraz was designed from the ground up 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 and are proud to release the complete Alcatraz into the world. 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.
The Alcatraz 1 offers up a Series 3 aluminum frame built for the hard knocks, it’s 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. There’s a suspension-corrected CrMo fork, front and rear Tektro mechanical disc brakes, Marin Custom Extrusion 26” Rims rolling on Vee Tire 2.25” rubber and plenty of bombproof Marin components. Best of all, it’s available in two frame sizes, regular and long to suit all rider heights.
Accessories: | Marin Chain Tension Device |
---|---|
Bottom bracket: | External Sealed Cartridge Bearings |
Brakes: | Tektro MD-M280 Mechanical Disc |
Cassette: | 14T Single Speed Cog |
Chain: | KMC HL-1 |
Crankset: | Marin Forged Alloy, Alloy 32T Chainring, 104mm BCD |
Fork: | Marin Series 2 CroMo 26", Suspension Corrected, 100x9mm Dropouts |
Frame: | Series 3 6061 Aluminum, 26” Wheels, 135x10mm Horizontal Single Speed Dropouts, 73mm Threaded BB, ISCG 05 Tabs |
Grip: | Marin MTN, Closed End |
Handlebar: | Marin Riser, 6061 Double Butted Aluminum, 31.8mm at center bulge, 38mm Rise, 750mm Width, 4º Up, 9º Back |
Handlebar stem: | Marin 3D Forged Alloy, 31.8mm clamp, 40mm extension |
Headset: | FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2” |
Hubs: | FRONT: Forged Alloy, Bolt On 3/8" Axle, 100mm Spacing / REAR: Forged Alloy, 135x10mm, Bolt-On, Quad Sealed Bearings, Disc, 32H |
Pedals: | Alloy Platform |
Rim: | Marin Custom Extrusion, 27mm Inner, Pinned Joint |
Rotor front: | 160mm Rotor |
Rotor rear: | 160mm Rotor |
Saddle: | Marin DJ Saddle |
Season: | 2024 |
Seat post: | Marin Alloy, 30.9mm |
Spokes: | 14g Black Stainless Steel |
Tyres: | Vee Tire Co. XCV 26x2.25”, LSG Compound, Wire Bead |
Wheel size: | 26" |
Marin Alcatraz Bike Sizing Chart

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.