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Marin Bikes

San Quentin 3 Frame Kit

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2025 1 San Quentin 3 2 2025 1 San Quentin 3 2

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  • Price: $549.00 (USD)*
  • Wheel Size: 29", 27.5"
  • Frame: Aluminum
  • Size Range: S, M, L, XL
  • Manufacturer’s suggested retail price may not include additional shipping or preparation charges. Please contact your local Marin dealer for a quote.

The Marin San Quentin shreds the boundaries of the mountain bike genres - doing it all with a huge splash of big air, speed and style.

Designed with the input of freeride legend Matt Jones, the San Quentin takes the DNA of our dirt-jumping Alcatraz and mutates it into a go-further and faster all-round, hardcore hardtail. Pedal all day in the hills, send it at the dirt jumps, carve the skatepark, go big in the bike park - it's all good on the San Quentin.

The Marin San Quentin Frameset is supplied with a headset, seat clamp and Marin rubber grommet kit for internal cable routing.

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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 1/2”

  • Extras

    Marin Rubber Grommet Kit For Internal Cable Routing

  • Extras

    Bolt-On Thru-Axle

  • Extras

    Marin Seat Clamp

Specifications, pricing, and availability are subject to change without notice.

Geometry

San Quentin 3 Frame Kit geometry diagram
S M L XL
Stack 6321 636 645 650
Reach 422 450 470 500
Headtube Angle 64° 64° 64° 64°
Headtube Length 115 120 125 130
Seattube Angle 77° 77° 77° 77°
Seattube Length 330 380 410 420
Toptube Effective 568 596 619 650
BB Height 327 327 327 327
BB Drop 50 50 50 50
Chainstay 430 430 430 430
Wheelbase 1182 1212 1236 1268
Standover Height 650 683 688 695

All lengths in millimeters

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