Complex sentence: The XT range debut was in 1976 with the breathtaking XT 500 single 4-stroke "toque hammer" Later other models followed spreading from XT 125 to the latest XT 660.
Split into simpler sentences: The XT range debuted in 1976 with the XT 500 single 4-stroke "torque hammer". Later, other models followed spreading from XT 125 to the latest XT 660.