Radio Flyer Flyer 20-Inch Kids Bike, Blue, Single-Speed with Training Wheels
- Kids' Bike
- 20 inches
- 1
- Aluminum
- Better rated than 80%
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How it ranks among the 150 kids' bikes we track
4.6★ across 32 Amazon ratings, Bayesian-smoothed toward the category average.
32 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 150 kids' bikes we track - how the scorecard works · full kids' bikes data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 21, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
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
Specifications
| Brand | Radio Flyer |
|---|---|
| Model | 840BLZ |
| Dimensions & fit | |
| Wheel Size | 20 inches |
| Weight | 24.25 pounds |
| Capacity & performance | |
| Number of Speeds | 1 |
| Construction & materials | |
| Frame Material | Aluminum |
| Color | Blue |
| Other details | |
| Brake Style | Caliper |
What buyers say
AI-assisted summary of a sample of Amazon customer reviews · Medium confidence · Updated Jul 6, 2026
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
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
Themes are compiled from a sample of Amazon customer reviews - no review text is copied, reviewers are not necessarily verified purchasers, and a sample may not represent every buyer's experience.
How it compares
This product against the closest alternatives we track in kids' bikes.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Radio Flyer Flyer 20-Inch Kids Bike, Blue, Single-Speed with Training WheelsThis product | 4.6 / 5 | 32 | 4.0 / 5 |
| Dynacraft Hot Wheels 16-Inch BMX Bike for BoysDynacraft | 4.5 / 5 | 3,200 | 4.4 / 5 |
| Coewske Kids Bike 18 Inch Steel Frame Princess Style with Training WheelsCoewske | 4.6 / 5 | 2,200 | 4.5 / 5 |
| Mongoose Legion L20 Freestyle BMX BikeBrand | 4.4 / 5 | 3,200 | 4.4 / 5 |
| JOYSTAR 12-16 Inch Vintage Kids Bike with Training Wheels & BasketJoystar | 4.6 / 5 | 2,800 | 4.3 / 5 |
Similar kids' bikes from other brands
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.
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.