MARIN SAN QUENTIN 20" 2025

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 aluminium frame, 20” wheels, an SR Suntour XCM suspension fork, 8-speed Shimano drivetrain and kid’s specific hydraulic disc brakes.

SPECIFICATIONS

FRAME
Series 2 6061 Aluminum, 20” Wheels, Disc Specific, 135mm Dropouts

FRONT SUSPENSION
SR Suntour XCM 24 BOOST, 80mm Travel, 110mm Axle Spacing

RIM
Marin, Double Wall Alloy, 25mm Internal

HUB REAR
Forged Aluminum, 32H, Disc Specific

HUB FRONT
Forged Aluminum, 32H, Disc Specific

SPOKES
14g Stainless Steel

TIRES
Vee Tire Crown Gem, 20x2.6”, Wire Bead

DERAILLEUR REAR
Shimano Altus

SHIFT LEVER
Shimano Altus SL-M315, 8-Speed

CRANKSET
Forged Alloy, Narrow Wide 30T, 140mm

BOTTOM BRACKET
Sealed Cartridge Bearings, Square Taper

CHAIN
KMC Z8

CASSETTE
Shimano 8-speed, 11-32T

BRAKES FRONT
Tektro HD-J285 Kid's Specific Hydraulic Disc

BRAKES REAR
Tektro HD-J285 Kid's Specific Hydraulic Disc

BRAKE LEVERS
Tektro Kid's Specific Short Reach Lever for Hydraulic Brake

HANDLEBAR
Marin Riser, 31.8 clamp, 30mm Rise, 590mm Width

STEM
Marin Alloy, 35mm

GRIPS
Marin MTB

HEADSET
FSA No. 10P

SEATPOST
Marin Alloy, 30.9mm

SADDLE
Marin Kids MTB

PEDALS
Kids Specific Nylon Pedal

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