YBR125 motorcycle brake light wire assembly, switch interface, wire harness specifications and the original brake system fully match, direct replacement without adjusting the circuit; Including brake light switch, wire harness, spring and hook, one-stop replacement of brake signal components, save separate purchase; Switch trigger response is quick, brake light can be immediately lit when braking, improve the rear vehicle identification, ensure driving safety; Switch shell is engineering plastic, wire harness with insulation protection layer, spring is rust-proof metal, suitable for outdoor riding environment; The plug of the wiring harness is consistent with the original car interface, and can be used when plugged in without additional wiring change.