Original sentence: Although the ZX-14 has almost unprecedented straight line performance,its relatively hefty weight means that it still cannot seriously challenge the current 1000 cubic centimeter sportsbike class in a racetrack environment (including Kawasaki's own ZX-10R)
Edited sentence: Although the ZX-14 has almost unprecedented straight line performance, its relatively hefty weight means that it still cannot seriously challenge the current 1000 cubic centimeter sportsbike class in a racetrack environment (including Kawasaki's own ZX-10R)