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Marin Alcatraz 2 2025 Frameset
The Alcatraz allows the rider to follow in Matt Jones’ footsteps to build and personalize the best dirt jump bike possible.
10% of free accessories
Get 10% of free accessories when you
Excludes discounted bikes, ex-demo bikes and Cyclescheme.
We have done our best to sufficiently estimate demand. Please contact us if you have a question or wish to check availability.
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Details
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.
Specification
| Frame | Series 3 6061 Aluminum, 26” Wheels, 135×10mm Horizontal Single Speed Dropouts, 73mm Threaded BB, ISCG 05 Tabs |
| Headset | FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8” × 1 1/2” |
| Seatpost | Marin Alloy, 30.9mm |
| Extras | Marin Chain Tension Device |
| Extras | Marin MTB Seatclamp, Bolt Type |
Specifications are subject to change without notice
Geometry
| Frame Size | Short | Long |
| A – Stack | 575 | 580 |
| B – Reach | 385 | 430 |
| C – Headtube Angle | 69° | 69° |
| D – Headtube Length | 115 | 120 |
| E – Seattube Angle | 69° | 69° |
| F – Seattube Length | 320 | 320 |
| G – Toptube Effective | 600 | 646 |
| H – BB Height | 317 | 317 |
| I – BB Drop | 22 | 22 |
| J – Chainstay | 395 | 395 |
| K – Wheelbase | 1037 | 1083 |
| L – Standover Height | 370 | 400 |
| M – Fork Offset | 42 | 42 |
| Seatpost Diameter | 30.9 | 30.9 |
| Handlebar Width | 750 | 750 |
| Stem Length | 40 | 40 |
| Crank Length | 170 | 170 |
Want to compare the size of your current bike to this one? Read our Reach and Stack guide here.
Additional Information
| Manufacturer | Marin |
|---|---|
| RRP | No |
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