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Marin Frame Kit – Alcatraz Gloss White Black

Marin Frame Kit – Alcatraz Gloss White Black

Brand: Marin

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Alloy Frame

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Product Details

Description

The Alcatraz was designed to be the best dirt jump and slopestyle bike you have ever ridden. Marin worked hand in hand with Matt Jones to define the exact needs of a modern dirt jump frame. The 6061 Series 3 aluminum frame is built for the hard knocks and is stiff for lightning-fast acceleration and tough 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.

Key Features

6061 Series 3 aluminum construction
Designed for dirt jump and slopestyle
Short stays for easy manuals
Ambidextrous cable routing for versatility
Includes FSA headset and chain tension device

Specifications

Product Overview

Product

Marin Frame Kit – Alcatraz Gloss White Black

Brand

Marin

Parent SKU

IA0CGQ5Y

Size SKUs

SM: MAFB220933001
LG: MAFB220933002

Product Features

Frame Material

Alloy

Frame Style

Crossbar

Colour

White

Build

Frame

Series 3 6061 Aluminum Frame, 26” Wheels, 135x10mm Horizontal Dropouts, 73mm Threaded BB, ISCG 05 Tabs

Headset

FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”

Accessories

Marin Chain Tension Device. Marin MTB Seat Clamp, Bolt Type

Frequently Asked Questions

What is the Marin Alcatraz Frame Kit used for?

The Marin Alcatraz Frame Kit is built for dirt jump and slopestyle riding—perfect for hitting jumps, spinning, and technical tricks. Its 6061 Series 3 aluminum construction and short stays prioritize pop, control, and durability for repeated impacts.

Why choose the Marin Alcatraz Frame Kit?

Choose the Marin Alcatraz Frame Kit for a purpose-built, tough yet responsive frame that includes practical components like an FSA headset and chain tension device. Ambidextrous cable routing and two size options give you flexibility to dial in the setup that suits your style.

Who is the Marin Alcatraz Frame Kit designed for?

The Marin Alcatraz Frame Kit is designed for riders focused on dirt jumps, slopestyle, and freestyle BMX-style riding who need a robust, nimble frame. It’s ideal for both progressing amateurs and experienced riders wanting a dedicated jump/street platform.

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PERFECT RIDE GUARANTEE

If you don't love it, you can swap it, up to 30 days from purchase!* Learn more »

FREE BIKE BUILD

We'll build your bike for free when you click and collect at any 99 Bikes store.

FIRST FREE TUNE-UP

Every bike comes with a complimentary free tune-up and safety check. Learn more »

Built tough, rides light

Series 3 6061 aluminum frame delivers a stiff, durable platform for hard landings and explosive acceleration. Engineered to stay responsive without weighing you down.

Perfect for jump-focused tricks

Short chainstays and a compact 26" wheel setup make manuals and technical moves effortless. Geometry is tuned specifically for dirt jump and slopestyle performance.

Simple, versatile setup

Ambidextrous cable routing and included FSA headset plus chain tension device mean an easy, customizable build. Comes with seat clamp and is available in two frame sizes.