Lucas 187SA Top Part of the Left Hand Switch Assembly fitted to such motorcycles as the T140 and TR7, T160, TSX and Norton Commando. This is a new old stock switch with one cable having 3 wires. The colours of the wires are: blue/white, blue/yellow and blue/red. The switch has the captions HI LIGHTS and LO. The button is black and the wires have a black switch block at the end of them. This is an original, genuine Lucas 187SA part.