US
Dynacraft

Dynacraft Krusher Sixteen20 20-Inch Boys BMX Bike, 7-Speed

  • Kids' Bike
  • 20 in
  • 6-10 years
  • Alloy Steel
4.2 / 5 635 reviews
  • More reviewed than 68%
Best for Buy this if you have basic mechanical skills and want an affordable bike for a child who is ready for a larger size.
$219.50
Check on Amazon →

Amazon Associate · we may earn from qualifying purchases. Prices & availability last checked Jul 8, 2026.

More from this brand All Dynacraft kids' bikes

The Dynacraft Krusher Sixteen20 (model 8111-63) is a 20-inch BMX bike designed for boys, featuring a sturdy steel frame, dual suspension, and 7-speed trigger shifters. Ideal for unpaved trails and neighborhood cruising, it includes front and rear linear pull brakes plus a coaster brake for reliable stopping. The extra-wide 2x2 tires and adjustable seat ensure comfort and stability on various terrains.

  • 7-speed trigger shift drivetrain for versatile gear options on hills and trails
  • Front and rear suspension with steel frame for smooth rides on rough terrain
  • Extra-wide 2x2 tires for improved traction and stability on dirt and pavement
  • Adjustable seat post and BMX-style design with high-gloss paint and custom graphics
Brand Dynacraft
Model 8111-63
Wheel Size 20 in
Age Range 6-10 years
Frame Material Alloy Steel
Number of Speeds 7
Color White
Weight 33.7 lbs
What buyers love

Kids enjoy riding this bike, and it offers good value for the price with surprisingly quality parts.

  • Kids transitioning to larger bikes
  • Buyers with mechanical skills
What buyers complain about

Assembly requires mechanical knowledge; common issues include bent wheels, difficult inner tubes, and brake problems.

  • Front wheel came bent
  • Inner tubes difficult to fill
  • Brakes hard for child to use
ProductDome scorecard

How it ranks among the 150 kids' bikes we track

3.5 / 5 Overall score
Owner satisfaction 4.2

4.2★ across 635 Amazon reviews, weighted by review volume.

Value for money 2.4

Cheaper than 23% of the kids' bikes we track.

Buyer demand 3.4

More reviewed than 68% 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 Dynacraft 8111-63

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

What age range is the Dynacraft Krusher Sixteen20 model 8111-63 suitable for?

This 20-inch bike is generally recommended for kids aged 6 to 12 years, depending on height. The adjustable seat allows for growth.

Does the Dynacraft 8111-63 have hand brakes or coaster brakes?

It features both front and rear linear pull hand brakes plus a coaster brake, giving multiple braking options for safety.

What type of terrain is the Krusher Sixteen20 designed for?

It is built for unpaved trails, dirt paths, and neighborhood roads, with dual suspension and wide tires for off-road capability.

Is the seat height adjustable on this bike?

Yes, the Dynacraft 8111-63 has an adjustable seat post, allowing the saddle height to be raised or lowered to fit growing riders.

Does it come fully assembled?

The bike requires some assembly; typically the handlebars, seat, pedals, and front wheel need to be attached. Tools and instructions are included.