MARIN San Quentin 20

The 2025 Marin San Quentin 20 Kids Mountain Bike is for riders growing up at the local bike park and cruising around the neighbourhood that want a kid-size bike with adult-size performance. It ideally suits kids from 3' 8" to 4' 4" tall.

Marin have taken their 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 San Quentin takes the DNA of Marin's 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.

This bike is perfect for

Kids from 3' 8" to 4' 4" tall who need a hardcore bike that can handle jumps and bike park features.

Key Features

• Series 2 6061 Aluminium Frame
• SR Suntour XCM 24 BOOST 80mm Travel Fork
• 1x8 Speed Shimano Altus Gearing