These banjo bolt brake light switches are perfect for cars or bikes using aftermarket brake master cylinders or bias pedal boxes. Manufactured from stainless steel and available in a range of thread sizes to suit most break cylinders. Simple to install and only require a simple 2 wire electrical hook up. The electric circuit is made when brake pressure is applied.Copper washers are required for sealing (not included, sold separately.)For motorcycle use please note:When using with Brembo master cylinders use '10 x 1.00mm Short' option.03 Copper crush washers are also required when fitting any 10 x 1mm or 10 x 1.25mm banjo bolts (x2 for single bolt, x3 for double bolt).Banjo bolt torque figures - Min 14 ft/lbs, Max 24 ft/lbs