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- Lightweight Series 2 6061 aluminium frame
- 120mm travel SR Suntour XCM32 fork
- MicroShift Advent 1x9 speed drivetrain
- Tektro M275 Hydraulic Disc brakes
- Tubeless ready rims with Vee Flow Snap tyres
The San Quentin is for the aggressive hardtail trail rider looking for a blend between singletrack and extended airtime. Taking cues from the Alcatraz, the San Quentin provides all the benefits of the dirt jump style with massive stand over and slick frame tubes. The more balanced rider position puts your weight between the wheels for impressive climbing and handling on flats, while the slack front end and short rear center help to pull you through the rough descents and corners with an intuitive feel. The San Quentin 1 features a lightweight Series 2 6061 aluminium frame, with tapered head tubes, 3D forged dropouts, IS brake mounts, and semi-internal cable routing. Spec’d with a MicroShift Advent 1x9 speed drivetrain, Tektro M275 Hydraulic Disc brakes and a 120mm travel SR Suntour XCM32 fork with Boost spacing. Rolling on 27.5” wheels, with tubeless ready rims and versatile Vee Flow Snap tyres.
Bottom bracket: | Sealed Cartridge Bearing, Square Taper |
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Brakes: | Tektro M275 Hydraulic Disc |
Chain: | KMC X-9 |
Crankset: | MicroShift Advent, 9-Speed with Bearing Movement |
Derailleur rear: | MicroShift Advent, 9-Speed, with Clutch |
Fork: | SR Suntour XCM32 Boost 15x110mm Spacing, 120mm Travel, Lock Out, 27.5", Bolt-On Thru-Axle |
Frame: | Series 2 6061 Aluminum, Double Butted Frame, Internal Cable Routing, 141mm Open Dropout, 73mm Threaded BB |
Freewheel: | Sunrace, 9 Speed, 11-46T |
Grip: | Marin MTN, Closed End |
Handlebar: | Marin Mini-Riser, 6061 Double Butted Aluminum, 780mm Width, 28mm Rise, 5º Up, 9º Back |
Handlebar stem: | Marin 3D Forged Alloy, 45mm |
Headset: | FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2” |
Hubs: | FRONT: Marin, Double Wall Alloy, 29mm Inner, Pinned Joint, Disc Specific, 32H Tubeless Compatible / REAR: Forged Alloy, Quad Sealed Cartridge Bearings, Alloy Axle, 141mm Width, 6-Bolt Disc, 32H, Shimano Standard Freehub Body |
Pedals: | Nylon Platform |
Rim: | Marin, Double Wall Alloy, 29mm Inner, Pinned Joint, Disc Specific, 32H Tubeless Compatible |
Rotor front: | 180mm |
Rotor rear: | 160mm |
Saddle: | Marin Speed Concept |
Season: | 2022 |
Seat post: | Marin Alloy, 30.9mm |
Spokes: | 14g Black Stainless Steel |
Tyre front: | Vee Tire Co, Flow Snap, 27.5x2.6", MPC Compound, Wire Bead |
Tyre rear: | Vee Tire Co, Flow Snap, 27.5x2.6", MPC Compound, Wire Bead |
Wheel size: | 27.5" (650b) |
Marin San Quentin Bike Sizing Chart


Marin Bikes are Made For Fun. Since the first mountain bikes bearing the Marin name debuted in 1986, the brand has been dedicated to enriching the lives of riders by making fun, high caliber bicycles, which provide years of riding enjoyment. They operate their business based on hard work, fueled by passion, and fulfilled by the satisfaction of bringing the joy of cycling to riders across the world.
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Please note, due to challenges in the product supply chain, bike specifications are subject to change without notice. Specifications listed below may not match exactly as shown in the photo.