Complex sentence: Honda's first combined braking system, dubbed "Unified Braking" at the time, debuted in 1983; it engaged both front and rear brakes in unison when the brake pedal was applied.
Split into simpler sentences: Honda's first combined braking system, dubbed "Unified Braking" at the time, debuted in 1983. It engaged both front and rear brakes in unison when the brake pedal was applied.