Gauges 45-65-80-100. Nickel Lo-Riders nickel-plated bass strings feature hexagonal cores wound with nickel-plated steel for a softer feel and a traditional warm nickel sound. Lo-Riders bass strings are even, long lasting, and loud with midrange growl. Excellent for fretless basses.Gauges 45-65-80-100 Hexagonal cores wound with nickel-plated steel