Marin SAN QUENTIN JR 24

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 24” will feel just like a ‘grown up’ mountain bike to your little ripper, built with a stout Series 2 aluminum frame, 24” wheels, and for 2025/26, a new Manitou J Unit 100mm air suspension fork meaning more adjustability for lighter shredders.

Further updates include a one piece seatpost and saddle to allow for a lower standover and ride height, 1 x 9-speed Shimano Cues drivetrain, tubeless compatible tyres kid’s specific hydraulic disc brakes.

Frame
Series 2 6061 Aluminum, 24” Wheels, Disc Specific, 27.2 Post and Dropper Compatible

Front Suspension
Manitou Junit Sport, 24", 100mm Travel, Air Sprung, Adjustable Rebound, Tapered Steerer, 15x110mm Axle

Rim
Marin, Double Wall Alloy, 26mm Internal, Tubeless Compatible

Hub Rear
Forged Aluminum, 32H, Disc Specific

Hub Front
Forged Aluminum, 32H, Disc Specific

Spokes
14g Stainless Steel

Tires
Delium Versatile, 24”x2.4”, Light Construction, Wire Bead, Tubeless Compatible

Derailleur Rear
Shimano CUES, RD-U4000, 9-speed

Shift Lever
Shimano CUES, SL-U4000, 9-speed

Crankset
Forged Alloy, Narrow Wide 30T, 140mm

Bottom Bracket
Sealed Cartridge Bearings, Square Taper

Chain
KMC X-Glide

Cassette
Shimano CUES, CS-LG3000, 9-Speed, 11-46T

Brakes Front
Shimano MT200, Hydraulic, 160mm Rotor

Brakes Rear
Shimano MT200, Hydraulic, 160mm Rotor

Brake Levers
Shimano Hydraulic

Handlebar
Marin Riser, 31.8mm Clamp, 30mm Rise, 580mm Width, 19mm OD Grip Section

Stem
Marin Alloy, 40mm

Grips
Marin MTB, Small Diameter

Headset
FSA No. 57E

Seatpost
Integrated With Saddle

Saddle
Marin One-Piece Saddle/Post Combo, 27.2mm Alloy Post

Pedals
Kids Specific Nylon Pedal