Marin San Quentin 3 Frame Kit - 2021


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Developed in conjunction with freeride legend Matt Jones and taking its name from the most rough and tumble piece of Marin County, the San Quentin collection lives up to the notoriety of the namesake maximum security California State Prison. Blending the strength an style of our Alcatraz dirt jump frame with the natural trail savvy of the best hardtails, the San Quentin family of aggressive trail hardtails is the perfect mash-up for the modern trail rider.

The San Quentin is for the agressive hardtail trail rider looking for a blend between singletrack capabilities and extended air time.

PERFECT FOR

  • DOWNHILL TRAILS
  • LIGHT DIRT JUMP
  • ENDURO

WHEEL SIZE: 27.5"
SIZE RANGE: S, M, L, XL
COLOR: Gloss Red/Black

The San Quentin is a bike that you can use across multiple disciplines — singletrack, dirt jumps, BMX amd pump tracks and downhill trails. Its dialed frame geometry means it is perfect to pin it on a singletrack or down rocky downhills, yet light enough that it’s not going to destroy you when riding to the top.

“WITH A COMPETITIVE PRICE, A FUN-TO-RIDE
GEOMETRY AND THE ABILITY TO RIDE ALL OVER THE
MOUNTAIN, THE SAN QUENTIN IS A BIKE WORTH
BREAKING OUT OF PRISON FOR,” -MOUNTAIN BIKE ACTION

Size

- SAN QUENTIN TECHNOLOGY -

  • 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.

  • 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.

  • 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.

- Bike Sizing -

Looking for the perfect size? Checkout our handy quick reference chart below (NOTE: The chart assumes average limb and torso proportions). Not sure about your size? Just send us your measurements using our Bike Sizing form and one of our experts will help you out!

Rider Height Frame Size
5'2" to 5'5" S
5'5" to 5'8" M
5'8" to 5'10" L
5'10" to 6'0" XL

- TECHNICAL 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
Frame Series 3 6061 Aluminum Frame, 26" Wheels, 135x10mm Horizontal Dropouts, 73mm Threaded BB, ISCG 05 Tabs

- MARIN GEOMETRY -

S M L XL
Head Tube Angle 65 65 65 65
Head Tube Length (mm) 105 110 120 125
Seat Tube Angle 75 75 75 75
Seat Tube Length (mm) 385 430 475 515
Top Tube Effective (mm) 579.1 602.3 624.7 645.9
BB Height 310 310 310 310
BB Drop 50 50 50 50
Fork Offset (mm) 46 46 46 46
Stand Over Height 664 677 714 745
Wheel Base 1144.8 1168.9 1193.1 1215.3
Chain Stay (mm) 425 425 425 425
Stack 586.1 590.7 599.7 604.3
Reach 422 444 464 484


- WARRANTY -

We're an authorized Marin dealer, which means that every bike we sell is backed by Marin's warranty, including a one-year complete bike warranty and a five-year frame warranty.  For full details, click here.

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