Conquer the trail, the jump line, and everything in between with the Marin San Quentin 3 Frameset in a sleek Gloss White/Black/Red finish. Designed for aggressive trail riders who demand versatility, this frameset is the perfect fusion of dirt jump style and enduro-capable performance.
Built to Ride Hard
At the core of the San Quentin 3 is a Series 3 6061 double-butted aluminum frame, featuring internal routing for shifters and dropper posts, a 12x148mm Boost thru-axle, and a 73mm threaded bottom bracket for durability and easy maintenance. It’s a rock-solid platform for building a bike that can take on downhill trails, light dirt jumps, or fast-paced enduro adventures.
Dirt Jump DNA Meets Trail Geometry
Inspired by Marin’s Alcatraz dirt jump bike, the San Quentin 3 boasts aggressive frame styling, massive standover clearance, and refined tube shaping. Pair that with modern trail geometry—a slack head angle for downhill confidence and a steep seat tube for efficient climbing—and you’ve got a bike that climbs like a goat and descends like a beast.
Ready for the Rough
With ISCG 05 tabs for easy chain guide installation and post-mount disc tabs for maximum braking power, this frame is ready to be built up for your style of shredding. Whether you're flowing through singletrack or boosting jumps at your local trail centre, the San Quentin 3 is your go-anywhere, ride-anything hardtail.
What’s Included:
Marin San Quentin 3 Frame (Gloss White/Black/Red)
Marin Rubber Grommet Kit for Internal Cable Routing
Bolt-On Rear Thru-Axle (12x148mm Boost)
Marin Seat Clamp
FSA No 57E Headset (semi-sealed cartridge bearings)
The Rolling Fix, Liverpool’s home of mountain biking, has the Marin San Quentin 3 Frameset ready for your next custom build. Whether you're upgrading your current ride or starting from scratch, this frame sets the foundation for big sends and fast laps.
Shop now and build your perfect trail weapon.
Specifications
Frame: Series 3 6061 Aluminum, Double Butted Frame, Internal Shifter and Dropper Post Routing, External Brake, 12x148mm Thru-Axle, 73mm Threaded BB
Headset: FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2â€
Extras: Marin Rubber Grommet Kit For Internal Cable Routing
Extras: Bolt-On Thru-Axle
Extras: Marin Seat Clamp