New to a thumper but enjoying every minute of it. Got a WR 400 2000X, for road lanes and track. Need an mot in Nov and will need horn and a brake light. Horn no worries, but bike seems to be wired for brake light, inc double fillament bulb. I can't see any switches, should I buy in line pressure switches to replace bonjo bolts and wire up to them? or should the bike allready have them?