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The Diamondback Cobra 24 in. bike for boys is built to last for serious mountain biking fun.
- Steel frame is built both for speed and for taking on neighborhood streets, bike trails and cross-country loops
- Front suspension fork features 40mm of bump-gobbling travel to ensure a smooth ride
- Drivetrain provides 21 speeds to help conquer hills and cruise on flat trails; features integrated chainguard
- Comfortable SunRace twist shifters allow the hands to remain properly positioned while changing gears
- Linear-pull brakes offer reliable stopping power and comfortable hand-brake levers
- Wide, knobby tires provide great traction on varied surfaces
- Special buy
- Specs and images are subject to change
This bike comes with Coast to Coast Support, which includes:View all Diamondback
REI Co-op Members get more:
- 1 year of free adjustments (see more below)
- In-store bike assembly
- Pickup in store or curbside
- Bike experts available at 170+ bike shops
More about our free adjustments:
- Free flat tire repairs (labor only; parts not included)
- 20% off shop services
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
Zoom suspension, 40mm travel
165mm 42/34/24 with guard
Shimano MF-TZ21, 14-28, 7-speed freewheel
Junior ATB knobby 24 x 2.1
Steel junior riser
Steel Pillar 27.2mm
Junior ATB 3-panel
Threaded 1 in.
Bike weight is based on median size, as sold, or the average of two median sizes.