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| |  | Diamondback BMX Bike | Home » » » Diamondback Jr Viper BMX Bike (20-Inch Wheels) | | | | | | | Description: | | Same straight forward design as the Viper, but with a low-profile frame for smaller riders. The Jr. Viper is the perfect first 20”-wheeled BMX bike. | | | Features: | |
• 20-inch BMX racing bike designed for smaller riders
• Built using same basic geometry as full-size Viper
• Heavy-duty steel frame and fork; 36-spoke aluminum wheels
• DB icon grips with flange; Hi-Ten steel 2-piece handlebars
• Recommended for ages 8 to 12
| | | Product Details: | | | Package Length:
| 44.9 inches | | Package Width:
| 21.2 inches | | Package Height:
| 9.6 inches | | Package Weight:
| 32.6 pounds | | Average Customer Rating:
|  based on 7 reviews |
| | | | Customer Reviews: | |
Average Customer Review:
 ( 7 customer reviews )
Write an online review and share your thoughts with other customers.
Most Helpful Customer Reviews
14 of 15 found the following review helpful:
 Doamondback Viper Jr ReviewApr 03, 2010
By A. Gruen
I purchased this bicycle for my son's 8th birthday. He has been off trainers for a while and is ready for handle brakes. I like that the bike has both a handle brake and a pedal brake. This is perfect for this learning transition. Shorter riders will quickly realize that grabbing the handle brake can help in steadying the bike while mounting.
I am very impressed with the quality of parts. Aluminum rims, easily adjustable gooseneck, long seat post for maximum adjustability, these features can be very helpful in extending the life of the bike.
The size of the bike frame and riding position fit my son perfectly. For your consideration I will say the frame minimum standing clearance is 20 inches. I do not recommend this bike for a child whose inseam is less than 21 inches. My son measures 21 inch inseam and is very comfortable riding.
The package arrived with a full set of allen wrenches and a open ended wrench. All tools necessary for initial assembly are in the box. If you buy, be sure to check all bolts before riding. The factory does not always get every one tight.
16 of 19 found the following review helpful:
 Perfect for my 7 year-oldJan 30, 2010
By DrummerBoyInCalif
Got this bike for my 7 year old who has outgrown his first bike, a 16-incher. The main problem I had with most 20-inch BMX bikes I've seen (I was hoping to find one under $100) at Target/Walmart/ToysRUs stores is the brakes -- very few models offer coaster (i.e., "the reverse pedal") brakes, and the hand brakes either don't fit my little man's hands or they were so stiff (cheap calipers) that there's no way a kid would be able to stop the bikes.
This bike was "just right" for my little man -- it is a "short" 20-inch bike -- the top bar and the seat are designed extra low for shorter legs. The wheel base is the same as your typical BMX, so my kid should be able to enjoy riding for several more years on this before he moves on to larger frames. The bike is set up with a rear coaster brake so that Junior can stop with his legs (and also do those cool skid-stops), and it has a smooth, higher quality linear-pull hand brake (also rear wheel) that is easy for growing hands.
Some assembly is required out of the box -- You'll need to install the front wheel, attach handbars, attach pedals & seatpost, and adjust the brakes. Gears, crankcase, and the rear wheel all come pre-assembled.
Get those helmets on, be safe, and pedal away...
3 of 3 found the following review helpful:
Diamondback Viper JrMay 03, 2010
By z fish
I purchased this bike for my son's 8th birthday and we are both very happy with the bike. The size is slightly big for him, which is what I wanted so he should have several years of use. The bike is good quality and assembly is very simple.
The first day went to a BMX track and the bike held up well through all the numerous jumps and falls. My son really loves the bike and all he wants do do is ride it everywhere. It also didn't hurt to have some older kids at the track tell him they liked his bike and ask a bunch of questions. I would highly recommend this bike for the high quality at a moderate price. I don't think you will find a better bike for $150.
1 of 1 found the following review helpful:
Great little bike!Apr 21, 2011
By Craig VA
Purchased for son's 6th birthday as an upgrade to 16" bike. Did lots of research and this is far and away the best option out there. Walmart/Target/Dick's bikes are all about $100 but are very heavy and have suspect components. This bike is steel, so durable but is also surprisingly light. Coaster brake and hand brake both work well and and are better quality than the big box options. Shipping/packaging was great, assembly pretty straight forward with wrench and allen keys. Hardest part is adjusting the hand brake - use rubber bands to "pull" handle and allow you to tighten cable.
Height is great - he stands over top tube with no problem. Color is closer to metallic "burnt orange" than red, but a very cool looking bike. He is psyched and so am I.
1 of 1 found the following review helpful:
Great bike for kids.Dec 05, 2010
By britepeach
I bought this bike for my son's 7th birthday. The bike looks like a really cool older kids BMX bike and we also put pegs on the back so now it's even more cool and fun. Great purchase!
See all 7 customer reviews on Amazon.com
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