The Avigo 12" Ignition Bikes are greatt kids bikes designed for inexperienced kids, fitted with a removable stabilizer. They are commonly blue or red in color.
The CnoC 16" is another great kids bike brand. It weighs 6.1 Kgs making it the lightest bike in the market. It's easy to manoeuvre and control. It is comfortable to ride and designed for kids above four years of age.
The Ridgeback Dimension 24" are designed for kids between eight and twelve years of age. They are relatively light making them easy to handle. They have quality and durable features. Their two wheels are available in a variety of colors.
The specialized Hotrock 20" are designed for kids between seven and nine years. They are light-weighted, highly stable bikes with easy grips for little hands. They are easy to control and fitted with six speeds.
Raleigh Molly 12" are best kids bikes designed for kids above three years. They are good starter-bike with stabilizers. They come with extra jazzy, ribbons, sparkly mudguards, and a Molly dolly. The Raleigh Performance 14" are designed for four years to teenager kids. They are suitable for youngsters who wishes to excel in riding. They are light weighted designed for easy peddling.
The Saracen Tufftra x Junior 24" are low frame bikes which makes controlling easy. They are mainly purple, pink and blue in color.
The Mongoose Evict Mountain Bike 24" are designed for kids between eight and twelve years. They are low-style frame bikes enabling kids to drop the seat out of way.
Those are some of the best bikes on the market today and I've tested them all with my kids.