What's the significance of a sealed bearing system in BMX bikes?

Style: Some BMX handlebars have a crossbar that connects the two main sections of the handlebar, forming a triangle. Others are unbraced and do not have this crossbar.
Effect on Riding Style: Handlebars with a crossbar are typically stronger and more rigid, making them suitable for riders who put their bikes through heavy abuse, such as park and street riders. Unbraced bars can offer more room for tricks, especially bar spins.
Flat Bars:

Style: Flat bars have no rise or sweep, providing a horizontal orientation. They are often found on older BMX bikes and are less common on modern models. https://justbmxbikes.com/best-24-inch-bmx-bikes/
Effect on Riding Style: Flat bars offer a more aggressive riding position and are suited for riders who prefer a low profile. They are less popular today but can still be found on certain specialty bikes.
BMX Cruiser Bars:

Style: Cruiser bars are wider and taller than standard BMX bars, offering a more relaxed riding position. They are typically found on BMX cruisers designed for casual riding and racing.
Effect on Riding Style: Cruiser bars provide stability and comfort, making them ideal for riders who want a smoother and less aggressive ride, such as those participating in BMX racing.
Big Box Bars:

Style: Big box bars are wide and tall, similar to cruiser bars, but often with a slight rise. They are popular for trails and dirt jumping.
Effect on Riding Style: Big box bars offer more control and stability for aggressive riding, making them a good choice for riders who want to tackle jumps and rough terrain.
Street Sweeper Bars:

Style: Street sweeper bars are relatively tall and wide, with a unique shape that provides good leverage for spins and tricks. They are designed for street and park riding.
Effect on Riding Style: Street sweeper bars are favored by riders who want precise control for technical tricks and spins.
Freestyle Bars:

Style: Freestyle bars encompass a wide range of styles, but they are typically designed with versatility in mind, allowing riders to perform a variety of tricks and maneuvers.
Effect on Riding Style: Freestyle bars are a good all-around choice, as they can accommodate different riding styles and preferences.
Ultimately, the choice of BMX handlebars depends on your riding style, the type of riding you do, and your personal preferences for comfort and control. Experimenting with different handlebar styles can help you find the one that suits you best.