Diamondback Octane 24" Bike

Priced: $309.00
Diamondback Octane 24" Bike
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Color: Black
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Diamondback Octane 24" Bike -

Ready to fuel his two-wheeled fun, the Diamondback Octane 24 in. boy's bike uses a shock-absorbing suspension fork and 21 gears to tackle any terrain he wants to explore.

All bicycles sold at REI include a free warranty tune-up. New bikes go through a normal break-in period, after which readjustment is important for longevity and performance. Bring your new bike in to your local REI for its free tune-up within 20 hours of use or 6 months from purchase, whichever comes first. Contact your nearest REI bike shop to schedule this important service.



  • Frame is constructed out of heat-treated aluminum for durable performance; sloped top tube accommodates a short stand-over height


  • The rear derailleur hanger, a part that is particularly vulnerable to breakage from young riders, can be easily replaced and extends the usable life of the frame


  • Linear-pull brakes supply sure stopping power and speed management; brake levers are sized for small hands

Traction and Grip:

  • Shimano Revo twist shifters are easy to use—simply twist the grip-integrated shifters to change gears


  • Trail XC suspension fork offers 40mm of travel to smooth out rough roads and take the jolts out of bumps and roots on the trail


  • Specs on the Diamondback Octane 24 in. boy's bike are subject to change
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Activity:Mountain biking
Bike frame material:Aluminum
Bike style:Mountain bike
Bike suspension:Front suspension
Bike weight:How we measure bike weight
Bottom bracket:Looseball
Brake levers:Alloy linear
Brake type:Rim brake
Brakes:Alloy linear
Chain:KMC Z51
Crankset:MTB alloy, 42/34/24
Fork:Trail XC, 40mm travel
Front derailleur:Shimano TZ-20
Front hub:Steel, 36h
Handlebar:Jr Riser
Handlebar shape:Riser bar
Number of gears:21
Pedals:Resin platform
Rear cogs:Shimano MF-HG37, 14-28, 7-speed
Rear derailleur:Shimano TZ-50
Rear hub:Steel, 36h
Rims:R-1000 alloy
Saddle:Junior ATB
Seat post:Steel
Shifters:Shimano Revo Twist
Stem:Alloy quill
Tires:Jr. ATB knobby 24 x 2.1
Wheel size:24 inches

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