KTM Carbon Fiber Duke 125 200 2011 2012 Chain GuardMDI Carbon Fiber Chain Guard for KTM Duke. All our carbon fiber Chain Guard 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