The most unique product in this comparison, Maximum's Gauge Mirrors, contains all the instrumentation a rider would normally need (odometer, oil pressure, speedometer, tachometer, tripmeter and voltmeter) within a pair of chromed, billet-aluminum mirrors. This test only addresses the tach function of the Gauge Mirrors. However, the mirrors could not mount directly to the Classic's stock mirror attachment points. Maximum Products is working with us to develop a mounting system. The red LED readout was easy to see in daylight. And when the full system is installed, the LEDs dim automatically through four levels of brightness for varying light conditions.