Features polished stainless steel bezels, non-fluctuating needles, incandescent back-lit translucent faces, chrome ôYö mount and handlebar clamps Water- and vibration-resistant construction Bezel diameters are 2.64ö Overall length is 2.7ö Color-coded wires and wiring instructions Tach adapter required for single-fire ignitions (pre-"04 models only). Matching 2.4ö mechanical drive speedometers available separately Installing an electronic tachometer on '04-'16 models will require the use of Part Number 2211-0160. TACH ELEC 2.4"BLK BULB LT