Biker's stunt bike, briefly

• Stunt rider's sport
• Cyclists' sport, for short
• Cycle sport
• Brand of racing bikes
• "E.T." bike
• X-Games bike, briefly
• Big name in stunt bikes
• Type of off-road racing
• Trick bike

Wikipedia Word definitions in Wikipedia
Cytoplasmic tyrosine-protein kinase BMX is an enzyme that in humans is encoded by the BMX gene .