LightHeart Gear has adjustable aluminum poles that weigh about 8.5 ounces for the pair. They are adjustable from about 48 inches (about 122 cm) to over 52 inches (~133 cm). They are not as heavy duty as hiking poles but they are reasonably stout. They are shock corded and fold down to only 11 inches long specifically for bicycle, motorcycle, kayaking, etc. I am not sure that these are appropriate for your application but they seem to tick most of the boxes on your list.