Trail Tech Radiator Fan Kit (thermostat) K Type Chain Guides Activity level: Moderate action to W 482 70308 Activity level: Moderate action to extreme intensity This spring set provides you with a sensible 30mm reduction in height without affecting the riding properties at the expense of a little ground clearance Note : On bikes that have a regulated thermostatically controlled harness (this includes all new KTM and Husqvarna EFI 2 strokes) you will need to install the included wire harness back to the battery and attached the fan kit to that wire harness Trail Tech’s TTV Temperature Switching Fan Kit monitors your cooling system performance and automatically activates the fan to keep engine at optimum temperature range