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Details

  • Sturdy steel frame and fork are built to handle the rigors of riding
  • Single-speed drivetrain offers simplicity and low maintenance
  • Linear-pull rear brake provides stopping power when needed
  • Stout BMX 20 in. wheels are outfitted with Comp III style tires for all-around performance
  • Specs on the Diamondback Jr. Viper 20 in. boys' bike are subject to change

Imported.

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.

View all Diamondback Kids' BMX Bikes

REI membership

Specs

Best Use Cycling
Frame DB high-tensile steel
Bike Suspension No Suspension
Fork BMX high-tensile steel
Crankset 1-piece steel, 36t
Bottom Bracket Loose ball
Rear Cogs 18t freewheel
Brake Type Coaster Brake
Brakes Rush V-brake
Brake Levers Rush RX2.1
Rims Alloy
Front Hub Steel, 36h
Rear Hub Steel, 36h
Wheel Size 20 inches
Tires Comp III Style, 20x1.75
Handlebar Shape BMX Bar
Handlebar Steel BMX
Stem Alloy quill
Seat Post Steel pillar
Saddle DB BMX Padded
Pedals Resin platform
Headset Threaded steel
Chain KMC Z410
Weight 26 lbs. 3 oz.
Bike Weight Bike weight is based on median size, as sold, or the average of two median sizes.
Gender Boys'
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