Roscoe 24 is a mid-fat kids' mountain bike designed to build confidence on the trail. It takes cues from the adult Roscoe, but this ride was built from the ground up for kids. 2.8˝ mid-fat tires, a 1x drivetrain, and a wide-range cassette make Roscoe the ideal bike for little rippers who want to build skills and have a ridiculous amount of fun keeping up with Mom, Dad, or an older sibling. Fit for riders 51-59˝tall.
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It's right for you if...
Your little shredder is ready to hop off the neighborhood streets and onto the trail, and you want to get them started the right way with a real-deal mountain bike that builds skills and confidence from the outset. If you're looking to teach your little one the wisdom of the trail, there's no better teaching tool than Roscoe.
The tech you get
A durable Alpha Gold Aluminum frame with a sloping top tube for added clearance, 24˝ wheels with mid-fat 2.8˝ tires for added traction and stability, a 1x8 Shimano drivetrain with a wide-range cassette for hills and technical sections, mechanical disc brakes, and loads of thoughtful details borrowed from adult MTB tech, like a closed front dropout and a tucked-in rear brake caliper so when kids drop their Roscoe it doesn't mean an automatic trip to the shop for a replacement part.
The final word
Give a kid a Roscoe and you'll make a mountain biker for life. Mid-fat tires and a wealth of kid-specific design details make this bike the perfect introduction to the trail. If your little one is ready to tag along when you hit the singletrack, this is the kid-friendly set-up that's made to build confidence, skills, and a healthy obsession with the world's greatest activity.
The Walkthrough
favorite_borderWhy you'll love it
There's no family outing as fun as a trail session, and Roscoe is the ideal kids' bike for building great memories
This isn't a small adult bike—it's built from the ground up for kids, by people who know exactly what works for them and what doesn't
When you're learning to ride, simplicity is best: a 1x8 drivetrain lets kids focus on keeping the rubber side down
The kid-specific frame geometry has a sloping top tube that makes it easier to hop on and off
The rear brake caliper is tucked into the frame to help prevent damage from laying the bike down
"Teaching your child to ride a bike should be a special experience. With the right knowledge, the right tools, and the right approach, you can build a memory that you and your child will look back on forever. This is everything you need to help your little one make a smooth transition from training wheels to a two-wheeler."
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 170 pounds (77 kg).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based off Trek pre-production painted frames at time of publication. Weights may vary in final production.
Sizing & fit
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local Trek retailer.
Rider Height
12" wheel
86.0
- 102.0 cm
2'9.9"
- 3'4.2"
16" wheel
99.0
- 117.0 cm
3'3.0"
- 3'10.1"
20" wheel
114.0
- 132.0 cm
3'8.9"
- 4'4.0"
24" wheel
130.0
- 150.0 cm
4'3.2"
- 4'11.1"
26" wheel
146.0
- 160.0 cm
4'9.5"
- 5'3.0"
All measurements provided in cm unless otherwise noted.
