sentences:  There is a minor nuisance to anti-rocker hardware in which the items emit a loud noise upon fastening into a grind that some aggressive skaters find unbearable.The anti-rocker setup altogether makes maneuvering harder (since the standard wheels slip more), wheel life shorter, overall speed slower, a rougher ride, and a wider turning radius, but because of the extra space in the middle, it makes grinding objects much easier than with a flat setup.The freestyle frame is another setup used by aggressive skaters.