The most popular Roundwound bass string ever. Rotosound was the first string company to produce this kind of string. Introduced in 1962 it changed the sound of the instrument instantly. The favourite string of many players including Billy Sheehan, John Paul Jones and Geddy Lee. The steel used to produce these strings is unique, combined with a highly secretive manufacturing process.

RS66LA Extra Light Gauge 30-50-65-85

RS66LB Medium Light Gauge 35-55-70-90

RS66LC Medium Gauge 40-60-75-95

SM66 Hybrid Gauge 40-60-80-100

RS66LD Standard Gauge 45-65-80-105

RS66LE Heavy Gauge 50-70-85-110

BS66 Custom Gauge 45-65-80-110 - Billy Sheehan's custom designed set.

Manufactured in England since 1958.
Finest quality materials.
Legendary British tone.