Buell Carbon Fiber 2006 2010 XB12STT and XB12Ss are different to the other models Pulley CoverMDI Carbon Fiber Pulley Cover for Buell XB9 XB12. All our carbon fiber Pulley Cover 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