Assault Fitness, a division of LifeCORE Fitness Inc. operating from Newton Drive in Carlsbad since 1994, manufactures the Assault AirBike and Assault Runner used in CrossFit boxes and competition-level training facilities worldwide. The Assault AirBike's fan-resistance mechanism delivers force proportional to pedal input, a progressive-load design that has become standard HIIT equipment at Carlsbad affiliates including CrossFit FLxR. LifeCORE Fitness is the parent company behind the Assault, LifeCORE, and Diamondback equipment brands, all designed and distributed from the same 92008 zip code facility. The product roster also includes the Assault AirRower Elite and Assault AirRunner, a curved-belt manual treadmill generating zero electricity whose biomechanics are studied in rehabilitation settings at clinics including ProActive Physical Therapy and Sports Medicine in Carlsbad. The AirBike Elite model uses a 27-inch steel fan housing, sealed cartridge bearings on the crank assembly, and a Bluetooth-enabled console displaying watts, RPM, calories, and heart rate across interval and target-based training modes.