Diamondback Octane 20" Boys' Bike
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Designed for taking around the block and out on the trail, the 20-in. Diamondback Octane is a great next-step bike for kids who are excited to take their two-wheeled adventures to the next level.
- Heat-treated aluminum alloy construction and replaceable derailleur hanger add durability
- Suspension fork gives a smooth ride
- Linear pull brakes are simple and strong and easy for kids to use
- Shimano 6-speed drivetrain gives a wide gear range for varied terrain
Imported.Free Adjustment Period:View all Diamondback Kids' Mountain Bikes
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.
Bike Frame Material
6061 Heat-Treated Aluminum
Steel, 40 tooth w/double guard
Shimano RS35 Revo Grip Shift
Shimano TZ-50, 6 Speed
Number of Gears
Alloy linear pull
Alloy linear pull w/ reach adjust
32h 20" R-1000 alloy
32h steel nutted
32h steel nutted, freewheel
Jr. ATB knobby
Steel Jr Riser
Steel Pillar, 25.4mm
Jr. ATB 2-panel
Resin MTB, 9/16"
Threaded 1 1/8"
KMC Z51, 6 Speed
25 lbs. 11 oz..
Bike weight is based on median size, as sold, or the average of two median sizes.
20 in Height Range 47" - 56" Reach 307 Stack 416 Effective Top Tube 465 Seat Tube Center-Top 280 Standover Height 495 Head Tube Length 100 Head Tube Angle (degrees) 70 Seat Tube Angle (degrees) 71 Bottom Bracket Height 239 Wheelbase 885 Chainstay 380 Fork Offset 37
Bike measurements are stated in millimeters.
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