HowStuffWorks The variable-diameter pulleys are the heart of a CVT. Each pulley is made of two twenty-diploma cones struggling with one another. A belt rides from the groove amongst the two cones. Weird Sounds: CVTs are naturally louder than their regular counterparts, However they should not be loud enough https://claytonecayv.boyblogguide.com/31497427/detailed-notes-on-cvt