evo.com | Marin Mountain > Foster their love of riding with the Marin Bayview Trail 24" Complete Mountain Bike. With short-reach brake levers that are easy to pull, 24" wheels that roll forever, and 7 speeds to tackle any trail, this is a great first bike with gears. Series 1 6061 Aluminum Alloy with 135mm Dropouts Mechanical Disc Brakes 1x7 Shimano Drivetrain The durable Shimano 7-speed drivetrain has the gear choices kid need to tackle trails in an easy to master package with a single front chainring and intuitive twist shifter. Price and Spec Subject to Change 32 Spoke Double Wall Rims with Formula Hubs | Kid's Marin Bayview Trail 24" Complete Mountain BikeKids' 2022 - One Size