WANT TO WHEELIE!WORRIED YOU MAY FLIP YOUR BIKE!FIT THE ON1 ANTI FLIP SWITCH.LAZER SENSOR FITS BIKE'S SWINGARM.FULLY ADJUSTABLE.CAN BE SWITCHED ON OR OFF.EASILY FITTED. INSTRUCTIONS INCLUDED. THIS IS NOT A WAND OR STICK PROTRUDING FROM THE REAR OF THE BIKE. DISCREET SENSOR CUTS ENGINE MOMENTERILY AT THE ANGLE YOU HAVE SET, AUTO RESETTING IGNITION. KIT INCLUDES : SENSOR, SWITCH UNIT, CABLE, UNIVERSAL STAINLESS STEEL BRACKETS AND BOLTS.YOU NOW HAVE THE CHANCE TO BID ON THIS ITEM, YOU MAY THINK THIS IS EXPENSIVE BUT TRY REPLACING THE REAR END OF YOUR PRIDE AND JOY . I DID. COST ME A FORTUNE !