partes duros de las piezas duras de alce phd phd 6 mm ktm gas de gas px1485Made from a flexible high density polyethylene, 6 mm thick for maximum protection of the frame and cases, contrary to aluminum, hdpe absorbs impacts, does not undergo deformations, does not generate vibration, 40% lighter than its aluminum equiv Cases from Projections, Goes through a Thermoforming Process and is Welded, No More Vibrating or Rattling, Mounting Hardware and Instructions Instruded