Children's

Step up from the Coast Trail 16", and see the spec progress, just like the young rider in your life. The Coast Trail 20" 1 is built around a lightweight aluminum alloy frame and fork, but with the addition of a simple and dependable single speed drivetrain - perfect for a growing rider who is able to get out for the ride to school, to the park or out on your neighborhood paths. LIGHTWEIGHT ALUMINUM FRAMES & FORKS - Coast Trail models are all built upon lightweight Series 1 aluminum frames and aluminum forks. This ensures that your young rider won't be held back by a heavy bike, as a lighter bike is easier to control and balance. The weight savings goes beyond the frame, and we ensured that every component spec'd offers the best balance of weight to durability. KIDS-SIZED COMPONENTS - Kids are smaller all over, so our designers took that into consideration when designing the Coast Trails. Handlebars and grips are of smaller diameter than found on adult bikes, brake levers are specifically designed for smaller hands, and even the pedals and saddles are proportionally smaller. This helps kids maintain comfort and control while they are still developing their skills as riders. SMOOTH-ROLLING 2.0" TIRES - Smooth-rolling Marin x Vee Tire 2.0" wide tires are used on all Coast Trail models, with smooth center for easy riding on paved surfaces, and inverted tread on the sides for added safety when the paths are rougher.

The Primer 16” is better than ever and perfect for younger riders with lots of tricks up their sleeves. The Primer rides like a pro-level bike that has been scaled down to meet the needs of smaller BMXers. Sunday's unique geometry helps them quickly adapt to bigger bikes as they grow. The Primer is packed with quality parts like Odyssey Springfield Brakes and a fully sealed cassette hub for reliability that you can count on every time. Key Features 16" Pro-Style Geometry Sunday Current 16" Tires 10t Cassette Hub 40mm Top Load Stem Odyssey Springfield Brakes FSA Headset KMC S1 Chain Specifications Frame: Sunday Primer, 16.5" top tube, integrated 1-1/8" head tube Fork: Sunday Primer, 16" fork w/ 2-piece steerer tube and welded pre-load Handlebar: Sunday, 2-piece Stem: Top load, aluminum, 40mm Headset: FSA integrated, 1-1/8" Alloy Cap: FSA aluminum cap Brake Lever: Aluminum, U-brake compatible Brakes: Odyssey Springfield U-brake Brake Cable: Odyssey Quik Slic Grips: Velo Junior Seat: Sunday Badge, seat and post combo Seat post: Integrated Seat Clamp: Sunday Sprocket: Sunday Sabertooth v2, 25T, steel Cranks: 127mm, 3-piece, chromoly BB Parts: Sealed, Mid, 19mm Pedals: Wellgo Junior platform, plastic Rims: P-7X aluminum, 16", 20H Front Hub: Sunday, 20H, low-flange, loose-ball, 3/8" axle Rear Hub: Sunday, 20H, sealed, 14mm axle w/ 10T Driver Spokes: 14g steel, black Tires: Sunday Current, 16 x 2.1" (F & R) Chain: KMC S1 Approx. Weight: 23.3lbs (with brakes) Frame Geometry Top Tube Length: 16.5" Head Tube Angle: 74.5° Seat Tube Angle: 71° Chainstay Length: 10.6"-10.85” Bottom Bracket Height: 9.25" Standover: 6.9"

The Donky Jr. 20" is built around a lightweight aluminum alloy frame and stout steel fork, with the addition of a dependable and smooth-shifting Shimano 6-speed drivetrain—perfect for a growing rider who is able to get out on longer rides.

For the girl who's first learning to ride, Sun's Flower Power is an eye-catching, kid-friendly bike that boasts quality, comfort and safety. This bright, fun 16-inch wheeled bike comes with training wheels, a sloped-down top tube for easy dismounting, and a rear coaster brake for sure stops.

The Division is built for the kid that wants to conquer the streets. Mountain bike-inspired geometry and components, like a 1x7 drivetrain and mechanical disc brakes, are reliable from trails to trips to the store with the family. These are the bikes that will inspire the next generation of riders to ride everything, everywhere, all the time. For the kid who doesn't want to be confined to the sidewalk, the Division 24 will open up a world of awesome possibilities. Whether it's quick trips to the park or friends' houses, rides to school, or riding around town with their crew, the Division 24 can handle whatever pavement comes their way. Made for kids 9 to 12 years old or 54"-61" in height, this do-it-all bike is super-slick and super-fun! An urban assault bike, it eats bumps for breakfast and gobbles curbs for lunch. Like a mountain bike made for the city street, the Division 24 is the ultimate multiuse kids bike. Designed with a lightweight frame and rigid alloy fork, the Division 24 is light enough to lift up the stairs to school but durable enough for hardcore street use. Featuring 7 gears and mechanical disc brakes, this bike is smooth shifting and low maintenance with serious braking power for wet and dirty conditions. Big, wide tires roll over almost anything in their path.

The Metric 24 is for kids ready to go farther. The Metric 24 is a 24-inch bike designed for kids ready to adventure beyond the neighborhood. This durable aluminum bike rolls fast and is lightweight to easily lift onto a bike rack. Just like our adult-size flat bar road bikes, the Metric 24 features flat bars, signature Diamondback design, and quality Shimano parts. Soft rubber handlebar grips and a Diamondback Jr. Padded Road bike seat keep young riders comfortable on longer rides, while smooth-rolling 24x1.75-inch tires let them keep up with their crew. The Metric 24 does double-duty as a ride to school and as a weekend getaway machine to cruise the bike path or explore around town with friends or family.

While 14"u bikes are not all that common, the Kink Pump 14" bike fills an important role in our lineup. Kids are not only getting into BMX at an earlier age, they are also progressing at an even earlier age and for that need a proper fitting bike as they grow. The Pump 14" fits perfectly between 12" and 16" bikes and is built with proportionate geometry and components suited to this age and height rider. Small details like the Mission Micro brake lever are considered carefully to ensure everything is of proper fit and function on this bike. The reduced angle of the Weider seat also means kids can sit down and ride comfortably. The Gloss Digital Maroon colorway is a custom take on a great color that you really can't go wrong with, and the reflective strip tires add a fresh look to the bike with the bonus of some added safety. The 6" rise T600 bars, 14" Lance forks and Pump frame all feature geometry tailored just for this 14" bike to fit the rider who's outgrown their 12". Component wise, the Kink Pump is truly a legitimate BMX bike with a Mission Function cassette rear hub, Mission Tracker 2.25" tires, and updated Mission Cease V2 brakes.

Built around a lightweight aluminum frame and fork, dependable Shimano 7-speed drivetrain, kids-sized saddle, grips and controls, along with the quality components you expect from Marin. Perfect for neighborhood adventures, where each block away from home feels like a mile. LIGHTWEIGHT ALUMINUM FRAMES & FORKS - Coast Trail models are all built upon lightweight Series 1 aluminum frames and aluminum forks. This ensures that your young rider won't be held back by a heavy bike, as a lighter bike is easier to control and balance. The weight savings goes beyond the frame, and we ensured that every component spec'd offers the best balance of weight to durability. KIDS-SIZED COMPONENTS - Kids are smaller all over, so our designers took that into consideration when designing the Coast Trails. Handlebars and grips are of smaller diameter than found on adult bikes, brake levers are specifically designed for smaller hands, and even the pedals and saddles are proportionally smaller. This helps kids maintain comfort and control while they are still developing their skills as riders. SMOOTH-ROLLING 2.0" TIRES - Smooth-rolling Marin x Vee Tire 2.0" wide tires are used on all Coast Trail models, with smooth center for easy riding on paved surfaces, and inverted tread on the sides for added safety when the paths are rougher.

For the child who's first learning to ride, Sun's Matrix is an eye-catching, kid-friendly bike that boasts quality, comfort and safety. This bright, fun 16-inch wheeled bike comes with training wheels, a sloped-down top tube for easy dismounting and a rear coaster brake for sure stops.

The San Quentin 24 is for riders growing up at the local bike park and cruising around the neighborhood that want a kid-sized bike with adult-sized performance. Series 2 Aluminum Frame Features a Series 2 aluminum frame with a tapered headtube, 3D forged dropouts, IS brake mounts, semi-internal cable routing and 135mm open dropouts. Dirt Jump Inspired Frame Style Provides all the benefits of DJ style with massive standover, slick frame tubes, and a hot paint job. Modern Trail Geometry A slack headtube angle paired with a steep seat tube angle creates a ride that will fly uphill, yet descend like it's on rails. The balanced rider position puts the rider weight between the wheels for steady climbing and handling on flats, while the slack front end helps to add higher speed stability through turns and rough patches. 1x Wide-Range Drivetrains Modern 1x drivetrains give the rider the benefits of shifting simplicity and chain retention.

A bike that introduces them to the action, the Hook 24 is a junior version of our do-anything hardtail mountain bike. Equipped to handle the abuse of real mountain bike trails and daily use around the neighborhood, it's made from the same aluminum alloy as our full-size bikes, so it's practically indestructible. A Zoom fork will give them the confidence to take on obstacles, giving your ripper-to-be 50mm of front suspension travel. The 24-inch wheels are stiff and stable, shod with aggressive 2.25-inch wide tires: perfect for tearing up the woods. Disc brakes and a Shimano 7 speed drivetrain will keep them climbing. This model fits riders 53"-62" tall, aged approximately 8-12 years old.