Buell 1125 Carbon Fiber Heel PlatesMDI Carbon Fiber Heel Plates for Buell 1125. All our carbon fiber Heel Plates 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, cured under heat and