Diamondback Kids' Jr. Viper BMX Bike

Diamondback Kids' Jr. Viper BMX Bike is rated 4.6 out of 5 by 11.
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NOW:$149.99(25% off!)
WAS: $199.99*


The price of the product might be updated based on your selection

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Diamondback Kids' Jr. Viper BMX Bike
Diamondback Kids' Jr. Viper BMX Bike
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Product Information:

Free In-Store Bike Assembly when purchased online or in-store. Click link below for details.

Watch as he nails his first bunnyhop or rail grind on the Diamondback® Kids’ Viper BMX Bike. Designed with simplicity and value in mind, the Jr. Viper will get your kid rolling at the park or in the neighborhood. The Hi-Ten steel frame and fork offers strength and stability to hone tricks and jumps. Alloy linear-pull brakes ensure safety.

Click here to learn more about Free In-Store Bike Assembly


  • Best for kids ages 5 to 9
  • Wheel Size: 20”
  • Frame: Hi-Ten steel
  • Fork: Hi-Ten steel
  • Rear Shock: N/A
  • Headset: 1" threaded
  • Cranks: 140mm steel 1-piece
  • Sprocket: 36t steel
  • Bottom Bracket: Loose ball
  • Front Derailleur: N/A
  • Rear Derailleur: N/A
  • Cog Set: 18t cog
  • Shifter: N/A
  • Chain: KMC Z410 1/2 x 1/8
  • Hub (F): 36h steel shell with 3/8" axle
  • Hub (R): 36h steel shell with coaster brake, 3/8" axle
  • Spokes: 14g
  • Rims: 36h aluminum, 30mm wide, ano black
  • Tires: Comp III style 20x1.75
  • Brakes: Alloy linear rear with coaster hub
  • Brake Levers: Alloy
  • Pedals: Resin platform
  • Handlebar: Hi-ten steel 2-piece 24" wide x 6" rise
  • Grips: DB Icon Grip with Nylon End Plug
  • Stem: 1" quill steel base with alloy clamp
  • Seat: DB BMX padded
  • Seat post: Steel pillar
  • Extras: Owner's manual
  • Style: 02-14-5300

NOTICE: Used Bikes and/or bikes purchased online that have been assembled are non-returnable.

We strongly recommend that a professional bicycle mechanic properly assembles, repairs, and maintains the bicycle. DICK'S Sporting Goods will provide free in-store assembly service by a certified technician for any bicycle purchased on our website or in our stores (proof of purchase required). If you choose to assemble the bicycle yourself, DICK'S Sporting Goods is not responsible for injuries or damages resulting from improper assembly.
  • Brand: Diamondback
  • Country of Origin: Imported


Rated 5 out of 5 by from I got a deal Bought this bike at an extra special price. Mr Ed had to replace the pedals because one was missing.
Date published: 2016-12-04
Rated 5 out of 5 by from Great Buy! Perfect for my 7yr old aspiring bmx rider. Way more sturdy than a $50 Walmart Huffy and didn't want to commit to a $280+ entry level name brand from a bike shop. I was looking for something sturdy with coaster brakes for a piece of mind that he can stop on a dime. He's been at it for a while now and loves it. Really satisfied with this purchase. Plus Diamondbacks were cool when I was a kid..
Date published: 2016-07-11
Rated 5 out of 5 by from Great value and customer service I like this bike. I picked it up for my son. However the top bar was low enough for my daughter to use it and she even taught herself how to ride a bike with it. It is sturdy and easily maintainable.
Date published: 2016-01-27
Rated 5 out of 5 by from Diamondback bike This bike was delivered in 2 days !! Perfect timing for Christmas ! My 9 year old loves it. Very easy to assemble and the color is nice. I only wish it had a kick stand. I am very please.
Date published: 2015-12-31
Rated 5 out of 5 by from Perfect bike for my 6 year old. The bike was the third installment for my 6 year old. He was previously riding a 16" BMX and was out pedaling the tiny cranks on that. This diamondback is the perfect step up with its 20" wheels and low profile frame. The duel brake system with hand and coaster has been great so far to teach my son to use the hand brake. Assembly was simple, and it took minimal time to setup at home in my garage with just a few tools. No complaints so far. Great green color.
Date published: 2015-12-29
Rated 5 out of 5 by from Great Bike, Great Buy!!! If you have any reservations about this bike, don't!!! It's great. I spent some time with a Dick's associate (on the phone) before I ordered it online and picked it up instore. You can't beat the free assembly. I also highly recommend the 2 year warranty as it includes a tune up once a year and one inner tube replacement. My son is almost 9 and this was going to be a Christmas present but he couldn't wait. He's super active and absolutely LOVES it. For the bike and warranty for under $200 is a great deal in my book. He had a cheap Walmart bike his grandma bought him last year (approx $50 RIP), it didn't make it to September. Can't beat Dick's amazing customer service. Your boy (or girl) will LOVE it!On a side note there are other versions of this bike. The green and white one is the 2015 model, the blue and white one is last years model (it is labeled as just Viper BMX not Jr). There is also a silver BMX one available on the site that is mainly for tricks not speed so if your kid likes that for the color just beware that they won't have the speed of a normal bike (mine didn't want to to compromise speed and I didn't want him doing tricks)
Date published: 2015-11-17
Rated 4 out of 5 by from good value This seems like a good bike for the money. It's definitely lighter and better made than bikes you can get from Target or Walmart. The price was great and we had it put together by our local Dick's SG bike shop for free. Haven't had it long, but so far so good.
Date published: 2015-08-19
Rated 5 out of 5 by from Great Beginner Bike I bought this bike for my 7 year old, who is just learning to ride without training wheels. This bike was the third one I had bought. I got two others at Target first, which both turned out to be duds. This bike was just right: Only one gear, and has pedal breaks (plus a rear hand break). One of the bikes I got from Target had multiple gears (not needed), and both bikes from Target only had hand breaks (his hands were too small to work them), and neither was put together well. This bike not only works great, but Dick's has someone who checks the bike out before you leave the store to make sure everything is working right, and they adjusted the seat height as well. My son has really liked riding this bike, and it has helped him master riding without the training wheels.
Date published: 2014-09-01
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