Composition - UV stable gelcoat - colored (black RAL 9005), fiberglass mat and fiberglass cloth impregnated with resin. In the stressed and susceptible places to break the parts are reinforced by Kevlar-Carbon or Coremat for the seats. Parts are flexible and have a smooth and polished surface. There is no need to paint!
Why GRP - colored fiberglass? - Nice polished parts, for those who want to save for the paintjob if they fit accessory in black. After hitting with for example Gravel, the part remains black of the damaged place.
Fenders use the original mounting points. (Exceptions may fenders on certain models category "naked bikes").
When installing, ensure the correct drilling mounting holes and then tighten the screws with a flair for the right fender position.