Marin Bikes

San Quentin 29" 3

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San Quentin 29" 3 profile.

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  • Price: $1,799.00 (USD)*
  • Suspension: Marzocchi Bomber Z2
  • 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.

Dirt jump DNA with all the speed and roll-over of 29" wheels. The San Quentin 3 29 is the top dog in the SQ 29 family. We’ve worked tirelessly to create the very best-specced San Quentin 29 ever but still kept the price tag down to earth and in reach of everyone. Marzocchi Z2 fork? Check. Tektro 4-piston brakes and 12-speed drivetrain? TranzX dropper post? You got it. FSA cranks, Maxxis rubber and plenty of kick-ass Marin kit? Abso-freakin-lutely.

Key upgrades over the San Quentin 2 29":

  • Marzocchi Bomber Z2 fork
  • Shimano Deore wide-range 12-speed drivetrain
  • Tektro Slate EVO 4-piston brakes
  • Maxxis Assegai tubeless compatible tires

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Specifications

  • Frame

    Series 3 6061 Aluminum, Double Butted, Internal Cable Routing, 12x148mm Thru-Axle, 73mm Threaded BB

  • Front Suspension

    Marzocchi Bomber Z2, 110x15mm Boost Spacing, 140mm Travel, Kabolt Axle, 44mm Offset

  • Rim

    Marin Aluminum Double Wall, Disc Specific, 29mm Inner, Sleeved Joint, 32H, Tubeless Compatible

  • Hub Rear

    Shimano HB-MT410B, 148x12mm, 32H, MicroSpline Freehub Body

  • Hub Front

    Shimano HF-MT410B, 110x15mm, 32H

  • Spokes

    14g Black Stainless Steel

  • Tires

    Maxxis Assegai, 29 x 2.5" MAXX TERRA, EXO Casing, Tubeless Compatible

  • Derailleur Rear

    Shimano Deore, 12-Speed, SGS

  • Derailleur Front

    -

  • Shift Lever

    Shimano Deore, 12-Speed, SL-6100IR

  • Crankset

    FSA Comet, Modular 1x, 32T Direct Mount Chainring, MegaTooth Technology, Boost Spacing

  • Bottom Bracket

    FSA MegaExo 73mm BSA

  • Chain

    KMC X-12 Silver and Black

  • Cassette

    SunRace, 12-Speed, MicroSpline, 10-51T

  • Brakes Front

    TRP Slate EVO, 4-Piston Hydraulic, Resin Pads, 203mm Rotor

  • Brakes Rear

    TRP Slate EVO, 4-Piston Hydraulic Disc, Resin Pads, 180mm Rotor

  • Brake Levers

    TRP Slate EVO, I-Spec EV Compatible

  • Handlebar

    Marin Mini-Riser, 6061 Double Butted Aluminum, 780mm Width, 28mm Rise, 5º Up, 9º Back

  • Stem

    Marin 3D Forged Alloy, 35mm

  • Grips

    Marin Grizzly Lock On

  • Headset

    FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”

  • Seatpost

    TranzX, YSP23JL, 1x Remote, Size S 125mm Travel, Size M 150mm Travel, Size L-XL 170mm Travel, 30.9mm

  • Saddle

    Marin Speed Concept

  • Pedals

    Marin Nylon Flat

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

Geometry

San Quentin 29" 3 geometry diagram
S M L XL
Stack 632 636 645 650
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 425 425 430 430
Wheelbase 1182 1212 1236 1268
Standover Height 650 683 688 695
Fork Offset 37 37 44 44
SeatPost Diameter 30.9 30.9 30.9 30.9
Handlebar Width 780 780 780 780
Stem Length 35 35 35 35
Crank Length 170 170 170 170

All lengths in millimeters

Technology

Detail image of the San Quentin 3 headtube

SERIES 3 AND 2 ALUMINUM FRAMES

The San Quentin 1 features a Series 2 aluminum frame, with tapered head tubes, 3D forged drop outs, IS brake mounts, and semi-internal cable routing. The San Quentin 2 and 3 feature Series 3 aluminum frames, with more advanced tube forming, more complex dropouts, post mount disc tabs, full internal cable routing, and a boost 148mm thru-axle

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Profile image of the San Quentin 3 on a gravel driveway

DIRT JUMP INSPIRED FRAME STYLE

Taking cues from the Alcatraz, the San Quentin line up provides all the benefits of the DJ style with massive stand over, slick frame tubes, and a sexy paint job.

Detail image of the San Quentin 3 headtube, showing the slack 65° headtube angle

MODERN TRAIL GEOMETRY

The slack head tube angle paired with a steep seat tube angle create a ride that will fly uphill with perfect front wheel precision but then descend like it’s on rails. The balanced rider position thanks to the steep seat tube 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.

Detail image of the San Quentin 3, highlighting the crankset and ISCG 05 tabs

ISCG TABS

San Quentin 2 and 3 models feature ISCG 05 tabs for easy chain retention device installation for rowdier riders.

Reviews

The San Quentin 3 would be an excellent gateway into the sport for the rider that's eager to progress, but also doesn't want to completely drain their savings account on a bike. It'd also make a great second bike for anyone that's looking to mix things up by spending time on a hardtail - it's a great way to sharpen skills that may have been dulled by rear suspension. Overall, the San Quentin's versatility is its biggest strength; the fact that it's not that hardcore of a hardtail is part of what makes it so good.

A value-packed hardtail that can kick the crap out of a lot of full suspension bikes that cost two to three times as much in a lot of different areas...

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