The Marin San Quentin 1 27.5X19 W Grey/Black L1 is a hardtail mountain bike crafted for riders who want a reliable, comfortable, and versatile bike capable of handling both trails and urban environments. Its thoughtfully engineered design, combined with quality components, makes it a great choice for intermediate riders or anyone looking to upgrade from a basic bike to something more capable.
Frame & Geometry
Built from Marin’s Series 1 6061 aluminum alloy, the frame balances lightweight performance with durability. The 19” Large 1 (L1) size frame is designed to fit riders approximately 5’8” to 6’0” in height, offering a comfortable yet aggressive geometry that encourages confidence on technical climbs and descents. The slightly relaxed head tube angle and balanced reach provide excellent control on rough terrain, while maintaining a comfortable seated position for longer rides.
Wheels & Tires
The bike features 27.5-inch wheels, which are versatile for a wide range of terrain. This wheel size offers a nimble ride with great maneuverability in tight sections while still rolling smoothly over roots and rocks. The trail-ready tires are designed to provide ample grip and traction in varied conditions, enhancing stability and control.
Drivetrain
Equipped with a Shimano 2x8-speed drivetrain, the San Quentin 1 gives riders 16 gear options for a broad range of riding scenarios—from steep climbs to flat cruising. The dual front chainrings provide extra gearing flexibility, making it easier to find the perfect cadence and maintain momentum on diverse terrain. Shimano’s reputation for reliability ensures smooth and precise shifting.
Suspension
Up front, a Suntour XCT suspension fork with 100mm of travel cushions impacts from trail obstacles and rough surfaces, increasing rider comfort and maintaining traction. The suspension fork is adjustable and well-suited for beginner to intermediate riders, offering a good balance of control and efficiency.
Braking System
Stopping power is handled by mechanical disc brakes which provide consistent, dependable performance. Though less powerful than hydraulic systems, mechanical discs are easier to maintain and repair, ideal for riders who prefer straightforward, reliable braking.
Comfort & Control
Wide flat handlebars increase leverage and steering precision, helping riders navigate technical trail sections with ease.
Ergonomic grips and a padded, adjustable saddle enhance rider comfort, encouraging longer rides with less fatigue.
Durable platform pedals offer stable footing and are beginner-friendly.
Design & Aesthetics
The sleek Grey/Black colorway gives the bike a modern, understated look that fits both trail and urban settings. Smooth welds and clean lines complete the aesthetic, showing careful attention to detail.
Ideal For
Intermediate riders or those stepping up from entry-level bikes
Riders between approximately 5’8” and 6’0” who need a reliable 27.5” hardtail
Trail riders looking for a balanced bike with comfort and control
Urban riders who want a rugged, stylish bike for mixed terrain
