u/DavidEmmett

Aprilia stick these polystyrene cubes to predefined spots on the fairing to test how much ground clearance there is. At the end, take them off, measure how much is worn away. Simple but effective.

Photo by me, from today's test in Barcelona. (Raining now, test is over)

https://www.instagram.com/p/DYeoCn_MtRl/