Marin Alcatraz 1 26 Mountain Bike 2027 - Jump
The Marin Alcatraz 1 is built for riders who want a capable and dependable dirt jump bike that’s ready to ride straight out of the box. Its Series 3 6061 aluminium frame is lightweight, strong and purpose-built for the demands of jump lines, pump tracks and skateparks. Short chainstays and a compact frame design make it easy to manual, pump and throw around, while the low standover height gives you plenty of freedom to move on the bike.
Key Features:
- Series 3 6061 aluminium frame with dirt jump geometry and horizontal dropouts
- CrMo rigid fork with suspension-corrected design for responsive handling
- Marin forged alloy single speed drivetrain with 32T chainring
- Tektro HD-M280 hydraulic rear disc brake with 160mm rotor
- 26” wheels fitted with fast-rolling Vee Tire XCV 2.25” tyres
- Internal cable routing and ISCG 05 tabs for a clean, durable setup
- Short chainstays for manuals, jumps and playful handling
- Available with 0% APR finance
A suspension-corrected CrMo rigid fork keeps the handling direct and predictable while helping reduce weight and maintenance. Combined with the fast-rolling 26” Vee Tire XCV tyres, the Alcatraz 1 carries speed well through rollers, berms and jump sections. The simple single speed drivetrain keeps things reliable and quiet, with Marin’s forged alloy crankset designed to take repeated impacts and hard landings.
Tektro’s HD-M280 hydraulic rear disc brake delivers controlled stopping power when you need to scrub speed or set up for technical features. Practical details like internal cable routing, ISCG 05 tabs and a threaded bottom bracket make maintenance straightforward while keeping the bike looking clean and dialled. Available in long and short frame options, the Alcatraz 1 lets riders choose the fit and feel that best matches their riding style.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Series 3 6061 Aluminum, 26” Wheels, 135x10mm Horizontal Dropouts, 73mm Threaded BB, ISCG 05 Tabs |
| Fork | CrMo rigid fork |
| Headset | FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2” |
| Stem | Marin 3D Forged Alloy, 35mm |
| Bars | Marin Riser, 6061 Double Butted Aluminum, 30mm Rise, 700mm Width, 4º Up, 9º Back |
| Front Brake | N/A |
| Rear Brake | Tektro HD-M280, Hydraulic Disc, 160mm Rotor |
| Brake Lever | Tektro HD-M280 |
| Speed | 1 |
| Rims | Marin Custom Extrusion, 27mm Inner, Pinned Joint |
| Front Hub | Forged Alloy, Bolt On 3/8" Axle, 100mm Spacing |
| Rear Hub | Forged Alloy, 135x1mm, Bolt-On, Quad Sealed Bearings, Disc, 32H |
| Front Tyre | Vee Tire, XCV 26x2.25”, LSG Compound, Wire Bead |
| Rear Tyre | Vee Tire, XCV 26x2.25”, LSG Compound, Wire Bead |
| Seat Post | Marin Alloy, 30.9mm |
| Saddle | Marin DJ Saddle |
| Chainset | Marin Forged Alloy, Alloy 32T Chainring, 104mm BCD, 170mm Crank Length |
| Bottom Bracket | Forged Alloy, 135x1mm, Bolt-On, Quad Sealed Bearings, Disc, 32H |
| Chain | KMC HL-1 |
| Cassette | 14T Single Speed Cog |
| Pedals | Alloy Platform |
Jump Bike Size guide
Jump bikes are designed and intended for Dirt jumps, street and skatepark riding. Not for riding any distance.
They primarily use a 26” wheel with the frame only available in one size, to suit riders taller than 4’5” or 137cm.
Some manufacturers offer a long or short length bike. Riders over 5’10” or 178cm will prefer the longer option.
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Marin Alcatraz 1 26 Mountain Bike 2027 - Jump
Cycle to Work is a salary sacrifice scheme, where you can save up to 42% off a new Bike and Safety equipment. This means the cost is deducted from your salary as a non-cash benefit, so you save on tax and national insurance.
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