Marin San Quentin Jr 24″

£999.00

The Marin San Quentin 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. Pedal all day in the hills, send it at the dirt jumps, carve the skatepark, go big in the bike park – it’s all good on the San Quentin.

Built up, tested and ready to go. Your child gets the magic of collecting a bike that has been properly built, checked and set up for them, working beautifully from the first ride. No stress for you, and no brakes rubbing.

Free delivery to the UK mainland in 1 to 3 working days, or collect from the shop. How delivery works

Free with this bike: woom GLUG Stainless Steel Bottle. It goes in your basket automatically.

Product Code: N/A SKU: MARIN-SAN-QUENTIN-JR-24 Categories: , , Tag: Brand:

Delivery

We put real effort into every bike. We build it, check it over until it's perfect, and carefully put it back in a box. When it arrives you just attach the handlebars and put the pedals on with the hex keys we provide. It's very simple. If you're struggling, we can do a video call and talk you through it.

Delivery to the UK mainland is free and takes 1 to 3 working days. If the bike is in the shop, next working day delivery is £5 when you order by midday, and Saturday delivery is £5. We're closed on Mondays, so Monday orders go out on Tuesday.

Need it today? Collect from the shop, usually the same day, or in London we can send it by Addison Lee the same day at their price. Call us on 020 8347 5534.

We can't send kids' bikes by courier to Northern Ireland, the Scottish Highlands and islands, the Isle of Wight, the Isle of Man or the Channel Islands. Give us a call and we'll talk it through.

Description

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.

Specification

FrameSeries 2 6061 Aluminum, 24° Wheels, Disc Specific, 30.9 Post and Dropper Compatible
ForkManitou Junit Sport, 24", 100mm Travel, Air Sprung, Adjustable Rebound, Tapered Steerer, 15x110mm Axle
HeadsetFSA No. 57E
StemMarin Alloy, 40mm
HandlebarMarin Riser, 31.8mm Clamp, 30mm Rise, 580mm Width, 19mm OD Grip Section
GripsMarin MTB, Small Diameter
Brake LeversShimano Hydraulic
Brakes FrontShimano MT200, Hydraulic, 160mm Rotor
Brakes RearShimano MT200, Hydraulic, 160mm Rotor
TiresDelium Versatile, 24°x2.4°, Light Construction, Wire Bead, Tubeless Compatible
RimMarin Aluminum Double Wall, Disc Specific
Hub FrontForged Aluminum, 32H, Disc Specific
Hub RearForged Aluminum, 32H, Disc Specific
Spokes14g Black Stainless Steel
Derailleur RearShimano CUES, RD-U4000, 9-speed
Shift LeverShimano CUES, SL-U4000, 9-speed
ChainKMC X-Glide
CassetteShimano CUES, CS-LG3000, 9-Speed, 11-46T
CranksetForged Alloy, Narrow Wide 30T, 140mm
Bottom BracketSealed Cartridge Bearings, Square Taper
SaddleMarin One-Piece Saddle/Post Combo, 27.2mm Alloy Post
SeatpostIntegrated With Saddle

Additional information

Weight10 kg
Colour

2026 Blue

Size

One size