Diamondback Octane 24" Boys' Bike

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The 24-in. Diamondback Octane is designed for riding around the block and out on the trail. It's a great next-step bike for kids who are excited to take their two-wheeled adventures to the next level.

  • Features

    • Heat-treated aluminum alloy construction and replaceable derailleur hanger add durability
    • Suspension fork gives a smooth ride
    • Linear pull brakes are simple, strong and easy for kids to use
    • Shimano 7-speed drivetrain gives a wide gear range for varied terrain

    Imported.

    Free Adjustment Period:
    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.
    View all Diamondback Kids' Mountain Bikes
  • Technical Specs

    Best Use

    Cycling

    Mountain Bike Style

    Trail

    Bike Frame Material

    Aluminum

    Frame

    6061 Heat-Treated Aluminum w/ Replaceable Hanger

    Bike Suspension

    Front Suspension

    Fork

    HL Zoom 24" Suspension

    Fork Travel

    50 millimeters

    Crankset

    165mm Steel, 42/34/24T w/ Chain Guard

    Bottom Bracket

    Loose Ball

    Shifters

    Shimano RS35 Revo Grip Shift, 3x7 Speed

    Front Derailleur

    Shimano TZ-20, 31.8mm Band Clamp

    Rear Derailleur

    Shimano TZ-50, 7 Speed

    Rear Cogs

    Shimano TZ21, 7 Speed Freewheel, 14-28T

    Number of Gears

    7

    Brake Type

    Rim Brake

    Brakes

    Alloy Linear Pull

    Brake Levers

    Alloy Linear Pull w/ Reach Adjust

    Rims

    32h 24" R-1000 Alloy

    Front Hub

    32h Steel Nutted

    Rear Hub

    32h Steel Nutted, Freewheel

    Wheel Size

    24 inches

    Tires

    Jr. ATB Knobby 24x2.1"

    Tire Width

    2.1 inches

    Handlebar Shape

    Riser Bar

    Handlebar

    Steel Jr Riser

    Stem

    Alloy Quill

    Seat Post

    Steel Pillar, 25.4mm

    Saddle

    Jr. ATB 2-panel

    Pedals

    Resin MTB, 9/16"

    Headset

    Threaded 1 1/8"

    Chain

    KMC Z51, 7 Speed

    Weight

    29 lbs. 13 oz.

    Bike Weight

    Bike weight is based on median size, as sold, or the average of two median sizes.

    Gender

    Boys'

  • Size Chart

    24 in
    Height Range 54" - 62"
    Reach 327
    Stack 482
    Effective Top Tube 500
    Seat Tube Center-Top 300
    Standover Height 546
    Head Tube Length 102
    Head Tube Angle (degrees) 69
    Seat Tube Angle (degrees) 71
    Bottom Bracket Height 282
    Wheelbase 959
    Chainstay 348
    Fork Offset 37

    Sizing Notes

    Bike measurements are stated in millimeters.

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