Marin Alcatraz JR24

Ready to launch into progression, the Marin Alcatraz JR24 brings big-bike feel to smaller riders. With a tough aluminium frame, dirt-ready geometry and single-speed simplicity, it's built for young shredders to rip, jump and repeat.Key Features:Series 3 661 aluminium frame with dirt jump geometry and ISCG 5 tabsMarin Series 2 CrMo rigid fork, suspension corrected for 24” wheelsSingle-speed drivetrain with forged alloy 32T chainringTektro MD-M280 mechanical disc brakes with 160mm rotors24” wheels with Vee Rail 2.25” tyres for grip and flowYouth-optimised geometry with 360mm reach and 69° head angle Available with 0% APR financeThe Marin Alcatraz JR24 is purpose-built for junior dirt jumpers who are serious about sending it. Sharing the same DNA as the adult Alcatraz, this scaled-down version features the same butted aluminium tubing and aggressive geometry, perfect for young riders learning tricks, building skills, and developing confidence on dirt.With a 360mm reach, 69° head angle and 72° seat angle, the Alcatraz JR24 delivers a stable yet responsive ride that’s tuned for manuals, berms and dirt doubles. The 369mm chainstays strike a great balance between flickability and control. A suspension-corrected Cro-Mo rigid fork gives a solid front end feel and helps young riders stay connected to the terrain.Simple and low-maintenance, the single-speed drivetrain keeps things reliable and distraction-free, while the forged alloy cranks and 32T chainring are tough enough to take knocks. The external BB with sealed cartridge bearings ensures smooth pedalling session after session. Tektro mechanical disc brakes offer confident stopping in all conditions and are easy to service.Rolling on wide 24” Marin custom rims and wrapped in grippy Vee Rail 2.25” tyres, this bike is ready for pump track laps, jump park missions or backyard sessions. Every component from the alloy riser bar to the DJ saddle has been chosen to suit smaller riders with big ambitions. The Marin Alcatraz JR24 is where fun, progression and durability meet for the next generation of dirt riders.