Marin San Quentin 1 29 - Tan-Black - 2025

Marin San Quentin 1 29 – The Hardcore Hardtail That Doesn’t Break the Bank

The Marin San Quentin 1 29 is designed for riders who want a high-performance hardtail without the high price tag. This bike delivers the ride quality and looks of a bike twice its price, making it perfect for trail enthusiasts looking for a serious machine to tackle everything from flowy singletracks to rough descents. With quality components and a robust aluminum frame, the San Quentin 1 offers the perfect mix of durability, control, and fun.

Frame & Geometry

• Series 2 6061 Aluminum Frame: Built from double-butted aluminum, the San Quentin 1 frame is both lightweight and strong. The frame is optimized for 27.5" or 29" wheels, depending on the size, giving you the versatility to tackle various terrains. It also features internal cable routing for a clean look, 141mm open dropout, and a 73mm threaded bottom bracket for ease of maintenance.
• Modern Trail Geometry: A slack 65° head tube angle combined with a steep seat tube angle provides a perfectly balanced rider position. You’ll enjoy precision and control climbing technical sections and unparalleled confidence descending steep, technical terrain. The short rear center and steep seat tube angle also make the bike agile in corners and stable on descents.

Suspension

• SR Suntour XCM34 Fork: Equipped with 130mm of travel, the XCM34 Boost fork offers excellent small bump compliance and control on rough trails. Featuring a coil spring design, the fork is built to handle trail abuse, and the 15x110mm Boost thru-axle ensures stiffness, giving you precise handling in challenging situations.

Wheels & Tires

• 29mm Marin Aluminum Double Wall Rims: With a wide 29mm inner rim width, the San Quentin 1’s rims are tubeless compatible, offering the ability to run lower pressures for more grip and control on technical trails.
• Vee Tire Co. Flow Snap Tires: The 2.6” wide Flow Snap tires feature aggressive tread patterns that provide excellent grip in various conditions, from loose dirt to wet roots. They are durable and built to handle rough trails, making them a solid choice for aggressive riding.

Drivetrain

• MicroSHIFT 1x9-Speed: The microSHIFT RD-M9195M rear derailleur, with a clutch mechanism, provides smooth shifting even in rough terrain. The wide-range 11-46T SunRace cassette gives you plenty of options for steep climbs and fast descents. The single chainring setup keeps things simple and reliable, making the bike easy to maintain while still providing a wide gear range for all types of riding.

Brakes

• Tektro M275 Hydraulic Disc Brakes: With 180mm rotors front and rear, the Tektro hydraulic disc brakes provide powerful stopping power in all conditions. Whether you’re descending steep, technical trails or stopping on a dime on the flats, these brakes give you the confidence to push your limits.

Cockpit & Components

• Wide Marin Handlebar: The 780mm wide Marin mini-riser handlebar gives you excellent control, allowing you to tackle technical terrain with confidence. The 45mm Marin stem keeps the handling responsive and agile, while the double-butted 6061 aluminum ensures strength and durability.
• Marin Speed Concept Saddle & Alloy Seatpost: Designed for comfort and control, the Marin Speed Concept saddle provides great support on long rides. The alloy seatpost offers strength while keeping the weight down, ensuring durability without adding unnecessary bulk.

Key Features

• Dirt Jump Inspired Frame Style: Inspired by Marin’s Alcatraz dirt jumper, the San Quentin 1 features a sleek, low-slung frame with massive standover clearance, providing the perfect blend of style and functionality for aggressive trail riders.
• Hydraulic Disc Brakes: The Tektro M275 hydraulic brakes deliver consistent and powerful stopping power, regardless of the conditions.
• Modern Geometry for Aggressive Riding: The slack head tube angle and short chainstays provide the perfect combination of stability on descents and nimbleness in corners.

Specifications Overview

• Frame: Series 2 6061 Aluminum, Internal Cable Routing, 141mm Open Dropout, 73mm Threaded BB
• Fork: SR Suntour XCM34 Boost, 130mm Travel
• Rims: Marin Aluminum Double Wall, 29mm Inner, Tubeless Compatible
• Tires: Vee Tire Co. Flow Snap, 27.5/29x2.6”
• Drivetrain: microSHIFT RD-M9195M, 1x9-Speed, 11-46T Cassette
• Brakes: Tektro M275 Hydraulic Disc, 180mm Rotors
• Handlebar: Marin Mini-Riser, 780mm
• Seatpost: Marin Alloy, 30.9mm

The Marin San Quentin 1 is built for riders who want to push their limits without pushing their budget. Featuring a quality frame, modern geometry, and reliable components, it’s the perfect hardtail for those who love to shred but don’t want to break the bank. Whether you're climbing, descending, or ripping through your favorite trails, this bike will keep up with your stoke every step of the way.