18 Gauge Duplex Brake Cable 25ft. Bundle Email 18 Gauge Duplex Brake Cable Part #: W-18DBC Part #: W-18DBC Quantity Price ea. 1 + $20.60 20.60 Back to: Duplex Brake Cable Ask a question about this product 18 Gauge Duplex Brake Cable 100 ft. Spool Description 25 Feet of 18 gauge duplex brake cable. White and black inner conductors wrapped in a grey PVC jacket. Outer insulation provides additional protection.