RRP • £845.00

DOWNHILL TRAILS

LIGHT DIRT JUMP

ENDURO

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

Download bike info (PDF)
Grouped product items35
Size RIDER HEIGHT RANGE In Stock Qty
S
5'1''----5'4''
View Store Locator
M
5'4''----5'7''
View Store Locator
L
5'7''----5'10''
View Store Locator
XL
5'10''----6'1''
View Store Locator

Specifications

  • Frame

    Series 2 6061 Aluminum, Double Butted Frame, 141mm Open Dropout, 73mm Threaded BB

  • Front Suspension

    SR Suntour XCM32 Boost 15x110mm Spacing, 120mm Travel, Lock Out, 27.5", Bolt-On Thru-Axle, 47mm Offset

  • Rims

    Marin, Double Wall Alloy, 29mm Inner, Pinned Joint, Disc Specific, 32H Tubeless Compatible

  • Hub, Rear

    Forged Alloy, 141mm Width, Disc, 32H, Shimano Standard Freehub Body

  • Hub, Front

    Forged Alloy, 110x15mm, Disc, 32H

  • Spoke, Nipples

    14g Black Stainless Steel

  • Tires

    Vee Tire Co, Flow Snap, 27.5x2.6", MPC Compound, Wire Bead

  • Derailleur, Rear

    MicroShift RD-M9195M, 9 Speed, With Clutch

  • Derailleur, Front

    -

  • Shift Lever

    MicroShift SL-M9195-R, 1x9 with Bearings

  • Crankset

    Marin Forged Alloy, Integrated Steel 32T Narrow Wide Chainring, Boost Spacing

  • Bottom Bracket

    Sealed Cartridge Bearing, Square Taper

  • Chain

    KMC X-9

  • Cassette

    Sunrace, 9 Speed, 11-46T

  • Brake, Front

    Tektro M275 Hydraulic Disc Brake, 180mm Rotor

  • Brake, Rear

    Tektro M275 Hydraulic Disc Brake, 160mm Rotor

  • Brake Levers

    Tektro M275 Hydraulic Disc

  • Handlebar

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

  • Stem

    Marin Alloy, 45mm

  • Grips

    Marin MTN, Closed End

  • Headset

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

  • Seatpost

    Marin Alloy, 30.9mm

  • Saddle

    Marin Speed Concept

  • Pedals

    Nylon Platform

  • Extras

    -

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

Geometry

San Quentin 1 geometry diagram
S M L XL
Stack 586.1 590.7 599.7 604.3
Reach 422 444 464 484
Headtube Angle 65° 65° 65° 65°
Headtube Length 105 110 120 125
Seattube Angle 75° 75° 75° 75°
Seattube Length 385 430 475 515
Toptube Effective 579.1 602.3 624.7 645.9
BB Height 317 317 317 317
BB Drop 50 50 50 50
Chainstay 425 425 425 425
Wheelbase 1144.8 1168.9 1193.1 1215.3
Standover Height 664 677 714 745
Fork Offset 47 47 47 47
Seatpost Diameter 30.9 30.9 30.9 30.9
Handlebar Width 780 780 780 780
Stem Length 45 45 45 45
Crank Length 170 175 175 175

All lengths in millimeters

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

Learn More
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.

Suspension Setup

REAR SHOCK SET UP

Recommended Sag = 30%/15mm

Step 1: Set correct pressure in rear shock.

Step 2: Sit on the bike and cycle the suspension (*with correct riding gear).

Step 3: Reset O-ring and sit on the bike, DO NOT BOUNCE, carefully step off.

Step 4: Measure sag (from o-ring to seal of shock), If it does not match the bike”s recommended sag in millimeters repeat process.

Step 5: Adjust rebound setting to ensure proper control.

FORK SET UP

Marin recommends that all bikes front and rear suspension feel balanced

Step 1: After rear sag is set follow the recommended pressure from the fork manufacture.

Step 2: Bounce evenly up and down on the bike, cycling the suspension up and down to make sure both front and rear suspension feel balanced, if the front does not match the rear add or release pressure.

Step 3: Once the bike feels balanced adjust the rebound damping to ensure proper control.

X-Fusion O2 Pro R

Rider weight and air pressure
LBS KG PSI
120 54 66
130 59 74
140 64 82
150 68 90
160 73 99
170 77 108
180 82 117
190 86 126
200 91 135
210 95 145
220 100 155
230 104 165
240 109 174
250 113 183
260 118 192
270 122 201