RFX Race Series Kill Button (OEM Replica) Suzuki RM80/85 89-14 RM125/250 89-05 RMZ250/450 04-06. RFX Race Series kill buttons are an exact OEM replacement part. Complete with the same couplings, fasteners, connectors and exact cable lengths as the genuine part. Available for a wide variety of bikes. OEM replacement. Accepts all original connectors. OEM cable length.