BMX Racing Cranks. Choose from all the best brands for Freestyle and Racing Bikes. We have 1pc, 2pc and 3pc cranks for sale in all kinds of colors and sizes. Answer, Box, Profile Racing, GT, Insight, Bombshell, Shimano DXR, and Raceface are a few of the best brands of BMX Racing Cranks. Primo, Profile Racing, Odyssey, Stranger, Shadow, Cult, Sunday, GT Power Series are the top brands for BMX Freestyle, Street and Dirt Jumping. You can also get your BMX Sprockets to match up with your cranks. BMX cranks some in several sizes and many different colors. We have cranks that include a bottom bracket or have an optional bottom bracket. The newest type bottom bracket is the Mid size and the older model is called American BB. The Mid BB is the same as the American except no BB cup is used. BB bearing come in several diameters including 19mm, 22mm and the new wider 24mm for serious strength.