what ever size fits them for their intended uses.
Depends on the diameters of the bars. Usually, but not always, they're the same and can use the same grips.
It´s the Stem, it holds the bars and match with the frame with the help of a headset.
The size of a BMX bike tire with a measurement of 20x2.35 is 20 inches in diameter and 2.35 inches in width.
Depends what size you are im 5 feet 10 and i ride a 20 inch bmx bike
The recommended BMX bike tire size for optimal performance and control is typically around 20 inches in diameter. This size provides a good balance of speed, agility, and stability for BMX riding.
A BMX bike size chart provides information on the recommended bike size based on the rider's height. It typically includes frame size, top tube length, and wheel size recommendations to help riders choose the right bike for their height and riding style.
depends the age and size
BMX bikes pretty much all have 20"wheels, which makes all frames very similar in size. On top of that BMX is almost entirely ridden standing up, so bike size doesn't matter as much as it does for road riding for instance.
BMX bike ramps are usually made out of material such as chrome or aluminum. They have to be durable enough for multiple people to use them at the same time.
For someone who is 5'9, a BMX bike with a top tube length of around 20.5-21 inches would be a good fit.
To determine the size of BMX frame you need for your bike, measure the distance from the center of the bottom bracket to the top of the seat tube. This measurement will help you choose the appropriate frame size for your height and riding style.
you can find a BMX bike in halfords