Marin Alcatraz 2 Bike 2025Built to send it. Designed alongside MTB legend Matt Jones, the Marin Alcatraz 2 is a purpose-built dirt jump and park machine that earns its reputation with every session. The Series 3 6061 aluminum frame is lightweight, stiff, and tough enough to take whatever you throw at it - short chainstays for easy manuals, ambidextrous cable routing to run your brake wherever you want, and ISCG 05 tabs for a chainguide. A 100mm Manitou Circus Expert coil fork, Shimano hydraulic disc brakes, and a solid singlespeed drivetrain keep it simple, reliable, and ready to go. Features Series 3 6061 aluminum frame co-designed with Matt Jones - lightweight, stiff, and built for the repeated impacts of dirt jumps, pump tracks, and slopestyle Short 395mm chainstays for a tight, responsive feel that makes manuals and tricks intuitive Ambidextrous cable routingrun your brake on the left or right, whichever suits your style Manitou Circus Expert 100mm coil fork with 20x110mm thru-axle for predictable, consistent performance lap after lap Shimano MT201 hydraulic disc brakes powerful, reliable braking control when you need it most Single speed drivetrain with Marin chain tension device - simple, dependable, and minimal maintenance SPECIFICATIONSFrame Series 3 6061 Aluminum, 26" Wheels, 135x10mm Horizontal Dropouts, 73mm Threaded BB, ISCG 05 Tabs Fork Manitou Circus Expert, 26", 100mm Travel, Coil Spring, Tapered Steerer, 20x110mm Thru-Axle Headset FSA No. 57E, Semi-Sealed Cartridge Bearings, 1-1/8" x 1-1/2"Crankset Marin Forged Alloy, 32T, 104mm BCD, 170mm Bottom Bracket External Sealed Cartridge Bearings Chain KMC HL-1Cassette14T Single Speed Cog Chain Tension Device Marin Chain Tension Device Brakes Shimano MT201 Hydraulic Disc, 160mm Rotor (Front and Rear)Wheelset Marin Custom Extrusion Rims, 27mm Inner, Pinned Joint, 32HFront Hub Forged Alloy, 110x20mm, Disc, 32HRear Hub Forged Alloy, 135x10mm, Bolt-On, Quad Sealed Bearings, Disc, 32HSpokes14g Black Stainless Steel Tires Vee Tire XCV, 26x2. 25", LSG Compound, Wire Bead Handlebar Marin Riser, 6061 Double Butted Aluminum, 38mm Rise, 750mm Width, 4deg Up, 9deg Back Stem Marin 3D Forged Alloy, 40mm Grips Marin Grizzly Lock-On Seatpost Marin Alloy, 30. 9mm Saddle Marin DJ Saddle Pedals Alloy Platform Intended Use Dirt Jump, Pump Track, Skatepark, Slopestyle Note: Components are subject to change without notice. METRICINCHMarin Alcatraz 2Size Short Long A: Seat Tube Length320320B: Effective Top Tube600646C: Stack575580D: Reach385430F: BB Drop2222G: Head Tube Length115120H: Head Tube Angle69 deg69 degI: Seat Tube Angle69 deg69 degJ: Standover Height370400K: Chainstay Length395395L: Wheelbase10371083Stem Length40 mm40 mm Handlebar Width750 mm750 mm Suggested Rider Height Frame Size Short Long Rider Height Up to 160 cm160 cm and above Marin Alcatraz 2Size Short Long A: Seat Tube Length12. 612. 6B: Effective Top Tube23. 625. 4C: Stack22. 622. 8D: Reach15. 216. 9F: BB Drop0. 90. 9G: Head Tube Length4. 54. 7H: Head Tube Angle69 deg69 degI: Seat Tube Angle69 deg69 degJ: Standover Height14. 615. 7K: Chainstay Length15. 615. 6L: Wheelbase40. 842. 6Stem Length40 mm40 mm Handlebar Width750 mm750 mm Suggested Rider Height Frame Size Short Long Rider Height Up to 5'3"5'3" and above | Marin Bikes | Alcatraz 2 26" Bike | Red Purple Fade | Long