It depends on your hub. If it's unsealed, then the ball bearings have different diameters - you just need to find out which size you need. That's fairly easy. If it's sealed, there is going to be a number on the side of the seal - usually a 4 digit number starting with a 6. That number identifies your bearing dimensions, that's the bearing size you need.
Different BMXes have different axle sizes. Easiest is to measure what you've got.
Bmx's don't come in sizes. They are all one size.
SKILLS!!
what ever size fits them for their intended uses.
Different BMXes have different axle sizes. Easiest is to measure what you've got.
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.
Depends what size you are im 5 feet 10 and i ride a 20 inch bmx bike
Basically you need a BMX and somewhere to ride it. Helmet, maybe some pads and gloves would also be nice.
All "true" BMX bikes are built for 20" wheels, which makes them very similar in size.
The BMX bikes that you buy at Target and or Walmart are not the same BMX bikes that are used in BMX Racing and BMX Freestyle. Real BMX bikes are lighter, they have diiferent size sprockets among many other things. Feel free to google the National Bicycle League or the American Bicycle League to get more information.
Yes