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Dynacraft

Dynacraft Magna Major Damage Kids Bike

  • Wheel Size: 20 inches
  • Age Range: 6-10 years
  • Brake Style: Coaster
  • Number of Speeds: 1

Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

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ASIN: B09V8XSR9JCategory: Kids' Bikes

More from this brandAll Dynacraft kids' bikes

Colors Available

BlueGreenOrangeRedYellow

Sizes Available

12"16"

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Overview

The Dynacraft Magna Major Damage (model 8114-99) is a single-speed BMX-style bike designed for children aged 5-9 with a 20-inch wheel size. It features a durable steel frame, coaster brake for easy stopping, and an adjustable seat to grow with your child. Ideal for riding on gravel, road, or trail as they learn and gain confidence.

  • Single-speed drivetrain with coaster brake for simple, intuitive stopping
  • 20-inch wheels with rigid suspension suited for gravel, road, and trail
  • Adjustable seat accommodates growing riders for extended use
  • Sturdy steel frame with a bold red finish and BMX styling

Specifications

BrandDynacraft
Dimensions & fit
Wheel Size20 inches
Capacity & performance
Age Range6-10 years
Number of Speeds1
Construction & materials
Frame MaterialAlloy Steel
ColorRed
Other details
Brake StyleCoaster

Frequently asked questions

Does the Dynacraft Magna Major Damage 8114-99 come partially assembled?

Yes, it requires some assembly; most components are pre-assembled, and a tool is included for basic setup.

What is the recommended age for this bike?

The 20-inch wheel size is typically for children ages 5-9, depending on height.

Does it have hand brakes or a coaster brake?

It uses a coaster brake (pedal backward to stop) for simplicity and safety for young riders.

Is the Dynacraft Magna Major Damage suitable for off-road use?

Yes, it is designed for gravel and trail riding, but the rigid suspension and knobby tires handle light off-road conditions.