Complex sentence: In the event the original tank design required only very minor changes and it retained its original main armament, however the tank's manoeuvrability was inevitably hampered by having a trailer, though this could be detached by a quick-release mechanism triggered by a Bowden cable.
Split into simpler sentences: In the event the original tank design required only very minor changes and it retained its original main armament. The tank's manoeuvrability was inevitably hampered by having a trailer, though this could be detached by a quick-release mechanism triggered by a Bowden cable.