US
Radio Flyer

Radio Flyer Flyer 20-Inch Kids Bike, Blue, Single-Speed with Training Wheels

  • Kids' Bike
  • 20 in
  • Caliper
  • Aluminum
4.6 / 5 32 reviews
  • Better rated than 80%
Best for Buy this if you want a sturdy, well-made bike for a child transitioning to two wheels and you're willing to pay for quality.
$299.99 In Stock
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Amazon Associate · we may earn from qualifying purchases. Prices & availability last checked Jul 8, 2026.

Colors Available

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The Radio Flyer Flyer 20-Inch Kids Bike (model 840BLZ) is a single-speed beginner bike designed for children ages 6-8. It features a sturdy steel frame, removable training wheels, and a coaster brake for easy learning. The seat includes a parent handle for guidance, and the adjustable seat height allows the bike to grow with your child.

  • Steel frame and premium finishes for durability
  • Tool-free removable training wheels for transitioning to two wheels
  • Coaster brake and linear pull brake for reliable stopping
  • Adjustable seat with parent handle for guided learning
Brand Radio Flyer
Model 840BLZ
Wheel Size 20 in
Brake Style Caliper
Frame Material Aluminum
Number of Speeds 1
Color Blue
Weight 24.25 lbs
What buyers love

Kids love this bike and it holds up well with daily use. Assembly is easy and the build quality is impressive.

  • Kids learning to ride
  • Transition from balance bike
  • Neighborhood riding with friends
What buyers complain about

Some buyers find the bike heavy for children, and the paint may not withstand rain. The price is also considered high by a few.

  • Bike is heavy for kids
  • Brake issues due to weight
  • Paint damaged by rain
  • High price for quality
ProductDome scorecard

How it ranks among the 150 kids' bikes we track

2.9 / 5 Overall score
Owner satisfaction 4.4

4.6★ across 32 Amazon reviews, weighted by review volume.

Value for money 2.2

Cheaper than 12% of the kids' bikes we track.

Buyer demand 0.5

More reviewed than 7% of the category.

Scores are computed from the 150 kids' bikes we track: Amazon rating weighted by review volume, with price and demand ranked against the category. Data-driven, not a hands-on test. Scored by Jake Torres, sports & outdoors editor.

Frequently asked

Questions about the Radio Flyer 840BLZ

Common buyer questions answered straight from the product spec data — no fluff, no "it depends".

Does the Radio Flyer Flyer 840BLZ come with training wheels?

Yes, it includes tool-free removable training wheels.

What is the seat height range on this bike?

The seat height is adjustable, allowing the bike to accommodate growing children, though exact measurements are not specified.

Is this bike suitable for beginners?

Yes, it is designed for beginner riders with a single-speed drivetrain and coaster brake.

Does it have a handbrake?

The bike features both a coaster brake and linear pull brakes, so it has handbrakes as well.