Marin Bikes | 2025 Alcatraz 2

📏Size Guide

Built for riders who want to go bigger, ride harder, and push progression on jumps, pump tracks, and street sessions.

The Marin Alcatraz 2 is a dedicated dirt jump bike engineered for aggressive jump lines, pump tracks, skateparks, and freestyle MTB riding. Built around a lightweight Series 3 aluminum frame with compact 26-inch wheels and purpose-built dirt jump geometry, the Alcatraz 2 delivers responsive handling, stability in the air, and durability for repeated hard landings.

Equipped with a Manitou Circus Expert suspension fork, hydraulic disc brake, single-speed drivetrain, and dirt jump-specific components, the Alcatraz 2 is designed for riders who want a capable and progressive platform for tricks, flow lines, and technical jump riding.

Key Features

• Series 3 Aluminum Dirt Jump Frame
Lightweight and durable aluminum frame with horizontal dropouts and dirt jump geometry.

• Manitou Circus Expert Fork
100mm travel suspension fork specifically designed for dirt jump and pump track riding.

• 26-Inch Wheel Platform
Responsive wheel size built for manuals, jumps, and technical freestyle riding.

• Single-Speed Drivetrain
Simple and low-maintenance setup for maximum reliability and chain security.

• Hydraulic Disc Brake
Shimano hydraulic rear brake provides strong and consistent stopping power.

• Dirt Jump Geometry
Short chainstays and compact wheelbase improve agility and bike control in the air.

• Wide Riser Handlebar
750mm riser bar improves leverage and control during jumps and tricks.

Technical Specifications

• Category
Dirt Jump Bike

• Discipline
MTB / Urban

• Frame
Series 3 6061 Aluminum, 26” Wheels, 135x10mm Horizontal Dropouts, ISCG05 Tabs

• Fork
Manitou Circus Expert, 100mm Travel, Coil Spring

• Bottom Bracket
External Sealed Cartridge Bearings

• Headset
FSA No 57E Semi-Sealed Cartridge Bearings

• Crankset
Marin Forged Alloy, 32T Chainring, 170mm

• Cassette
14T Single-Speed Cog

• Chain
KMC HL-1

• Brakes
Shimano MT201 Hydraulic Disc Brake

• Brake Rotors
160mm

• Wheelset
Marin Custom Extrusion, 27mm Inner Width

• Front Hub
Forged Alloy, 110x20mm, Disc, 32H

• Rear Hub
Forged Alloy, 135x10mm Bolt-On, Quad Sealed Bearings

• Tires
Vee Tire XCV 26x2.25"

• Handlebar
Marin Riser Alloy Bar, 750mm Width

• Stem
Marin 3D Forged Alloy

• Seatpost
Marin Alloy, 30.9mm

• Saddle
Marin DJ Saddle

• Pedals
Alloy Platform

• Color Option
Purple Fade (#6B3FA0 → #C86BFF)

Geometry

Suitable for dirt jumps, pump tracks, skateparks, street riding, freestyle MTB riding, and technical jump lines.