Marin

2024 Marin San Quentin 20"

Previous used estimate

$402 - $413

Actual value depends on condition, size, and local demand.

2024 Marin San Quentin 20"

Value Guide market data · 2024 Marin San Quentin 20"

12-month projected trend

17%

Direction and magnitude, not judgment

vs. category average

3%

Drops faster than category avg

Price over time - 2024 Marin San Quentin 20"

$669$381$92MSRPMSRPYr 1Yr 2Yr 3Yr 4Yr 5Yr 6Yr 7Yr 7Yr 8Yr 9Yr 10Yr 11Yr 12Yr 13Yr 14Yr 14Yr 15Yr 16Yr 17Yr 18Yr 19Yr 20Yr 20

Values based on actual sales data. Enter your bike's specifics to get a precise valuation.

All San Quentin model years

Overview

About this bike

We took our Matt Jones-inspired Marin San Quentin and shrunk it down to fit 20" wheels. It's the perfect bike for kids who are ready for their first proper, hardcore hardtail mountain bike. The Marin San Quentin 20", just like the big kid's version, 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. The San Quentin 20" will feel just like a 'grown up' mountain bike to your little ripper, built with a stout Series 2 aluminum frame, 20" wheels, an SR Suntour XCM suspension fork, 8-speed Shimano drivetrain and kid's specific hydraulic disc brakes. SERIES 2 ALUMINUM FRAME - San Quentin 24" and 20" both feature a Series 2 aluminum frame, with a tapered headtube, 3D forged dropouts, IS brake mounts, semi-internal cable routing and 135mm open dropouts. DIRT JUMP INSPIRED FRAME STYLE - Taking cues from the Alcatraz, as well as the full-size San Quentin lineup, the San Quentin 24" and 20" proved all the benefits of DJ style, with massive standover, slick frame tubes, and a hot paint job. MODERN TRAIL GEOMETRY - A slack headtube angle paired with a steep seat tube angle creates a ride that will fly uphill, yet descend like it's on rails. The balanced rider position is puts the rider weight between the wheels for steady climbing and handling on flats, while the slack front end helps to add higher speed stability through turns and rough patches. 1X WIDE-RANGE DRIVETRAINS - Modern 1x drivetrains, just like the larger San Quentins, give the rider the benefits of shifting simplicity and chain retention.

Specifications

Subtype
Cross Country
Category
Kids
Component Fork
SR Suntour XCM 24 BOOST, 80mm Travel, 110mm Axle Spacing
Component Hubs
Forged Aluminum, 32H, Disc Specific
Component Size
20-inch
Component Stem
Marin Alloy, 35mm
Product Family
San Quentin
Component Chain
KMC Z8
Component Color
White Black
Component Frame
Series 2 6061 Aluminum, 20” Wheels, Disc Specific, 135mm Dropouts
Component Brakes
Tektro HD-J285 Kid's Specific Hydraulic Disc
Component Pedals
Kids Specific Nylon Pedal
Component Saddle
Marin Kids MTB
Component Headset
FSA No. 10P
Component Crankset
Forged Alloy, Narrow Wide 30T, 140mm
Component Seatpost
Marin Alloy, 30.9mm
Component Shifters
Shimano Altus SL-M315, 8-Speed
Component Handlebar
Marin Riser, 31.8 clamp, 30mm Rise, 590mm Width
Component Rear Tire
Vee Tire Crown Gem, 20x2.6”, Wire Bead
Component Wheel Set
Marin, Double Wall Alloy, 25mm Internal
Component Front Tire
Vee Tire Crown Gem, 20x2.6”, Wire Bead
Component Tape Grips
Marin MTB
Component Brake Levers
Tektro Kid's Specific Short Reach Lever for Hydraulic Brake
Component Bottom Bracket
Sealed Cartridge Bearings, Square Taper
Component Rear Derailleur
Shimano Altus
Component Cassette Freewheel
Shimano 8-speed, 11-32T
Hubs
Forged Aluminum, 32H, Disc Specific
Crankset
Forged Alloy, Narrow Wide 30T, 140mm
Pedals
Kids Specific Nylon Pedal
Bottom Bracket
Sealed Cartridge Bearings, Square Taper
Chain
KMC Z8
Seatpost
Marin Alloy, 30.9mm
Saddle
Marin Kids MTB
Handlebar
Marin Riser, 31.8 clamp, 30mm Rise, 590mm Width
Headset
FSA No. 10P
Rear Derailleur
Shimano Altus
Rear Tire
Vee Tire Crown Gem, 20x2.6”, Wire Bead
Stem
Marin Alloy, 35mm
Brake Levers
Tektro Kid's Specific Short Reach Lever for Hydraulic Brake
Brakes
Tektro HD-J285 Kid's Specific Hydraulic Disc
Fork
SR Suntour XCM 24 BOOST, 80mm Travel, 110mm Axle Spacing
Frame
Series 2 6061 Aluminum, 20” Wheels, Disc Specific, 135mm Dropouts
Shifters
Shimano Altus SL-M315, 8-Speed
Tape/Grips
Marin MTB
Color
White Black
Size
20-inch
Cassette/Freewheel
Shimano 8-speed, 11-32T
Wheel Set
Marin, Double Wall Alloy, 25mm Internal
Front Tire
Vee Tire Crown Gem, 20x2.6”, Wire Bead

What to check when buying used

Inspection

Frame condition

Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.

Inspection

Drivetrain wear

Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.

Inspection

Service history

Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.

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