Harley Davidson Carbon Fiber V Rod Muscle Side Panels Only Fits V Rod model VRSCFMDI Carbon Fiber Side Panels for Harley Davidson V Rod Muscle. All our carbon fiber Side Panels are made with an Autoclave process, which uses the highest quality TORAYCA PREPREG carbon fiber fabric from Japan. More information on the manufacturers specifications: Finishes and Materials! Cures at 400 degrees and a pressure of 5Kg cm. One of the most advanced techniques for making composite components is by using PrePreg carbon fiber reinforcement,