MARIN Alcatraz Jr
| Model Year | 2026 |
|---|---|
| Options | OS RED PINK In Stock (Warehouse) |
| Style | The Alcatraz was designed from the ground up to be the best dirt jump and slopestyle bike you have ever ridden. We 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. The 6061 Series 3 aluminum alloy frame is stiff and overbuilt for abuse, with a tapered headtube and 135x10mm horizontal drop outs. Available solely as a complete bike, so there is less time between you and throwing big whips and flips. The Alcatraz was designed from the ground up to be the best dirt jump and slopestyle bike you have ever ridden. We 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. The 6061 Series 3 aluminum alloy frame is stiff and overbuilt for abuse, with a tapered headtube and 135x10mm horizontal drop outs. Available solely as a complete bike, so there is less time between you and throwing big whips and flips. |
| Frame | Series 3 6061 Aluminum, 24" Wheels, 135x10mm Horizontal Dropouts, 73mm Threaded BB, ISCG 05 Tabs |
| Forks | Marin Series 2 Cro-Mo 24" Fork, Suspension Corrected, 100x9mm Drop Outs |
| Chainset | Marin Forged Alloy, Alloy 32T DM Chainring, 152mm Crank Length |
| Bottom Bracket | External Sealed Cartridge Bearings |
| Chain | KMC HL-1 |
| Cassette | 14T Single Speed Cog |
| Headset | FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2" |
| Stem | Marin 3D Forged Alloy, 35mm |
| Handlebars | Marin Riser, 6061 Double Butted Aluminum, 30mm Rise, 700mm Width, 4º Up, 9º Back |
| Front Brake | Tektro MD-M280 Mechanical Disc 160mm Rotor |
| Rear Brake | Tektro HD-M280, Hydraulic Disc, 160mm Rotor |
| Brake Levers | Tektro CL-330TS Alloy |
| Rims | Marin Custom Extrusion, 27mm Inner, Pinned Joint |
| Front Hub | Forged Alloy, Bolt On 3/8th Axle, 100mm Spacing |
| Rear Hub | Forged Alloy, 135x10mm, Bolt-On, Quad Sealed Bearings, Disc, 32H |
| Spokes | 14g Black Stainless Steel |
| Tyres | Vee Tire, Rail 24x2.25" , LSG Compound, Wire Bead |
| Saddle | Marin DJ Saddle |
| Seatpost | Marin Alloy, 30.9mm |
| Pedals | Alloy Platform |
| Grips | Marin MTN, Closed End |
| Miscellaneous | Marin Chain Tension Device |
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.






