Slide Jazz Bass 77 Monel flatwound strings


Monel flatwound


40 • 50 • 75 • 90




Rotosound RS77 medium scale RS77M M Jazz Bass strings. Steel Monel nickel flatwound round wound jazzbass bass wire precision jazz Rickenbacker 4003 John Entwistle bajo guitare rock jazz standard gauge regular warm full standard gauge guage

Jazz Bass 77 Medium Scale | 40-90


772mm – 810mm | 30.5″ – 32″

The flatwound bass string that’s been awarded many accolades since its inception in 1966.

Wound with the premium alloy Monel, Jazz Bass strings sound deeper and offer more resistance than the more commonly used stainless steel wrap.

Flat out success

Across the globe, players choose Jazz Bass flatwound strings for a full tone that retains its clarity.

The distinctive sound and red silk ends of these strings have been revered by iconic bassists such as Roger Waters, Phil LynottSting, John Deacon, Dee Murrey, and Glen Matlock.

Sting The Police Live Rotosound Strings Jazz Bass 77 flatwound bass

As heard on

Pink Floyd | Piper at the Gates of Dawn, Atom Heart Mother, Dark Side of the Moon, Wish you Were Here, Animals, The Wall…

Thin Lizzy | Bad Reputation

The Sex Pistols | Never Mind the Bollocks…

The Police | Regatta de Blanc, Outlandos D’amour, Zenyata Mondata

The Cure | Seventeen Seconds

Queen | A Night At The Opera, A Day at the Races, News of the World, Jazz

Elton John | Goodbye Yellow Brick Road

British quality

Manufactured in the UK to precise tolerances and using only the finest materials, you can rely on Jazz Bass 77 strings for consistent tone and performance in every packet.

Every Jazz Bass string is still manufactured the ‘old fashioned way’ by hand on machines that James How built at the end of the 1960’s. 

Mighty Monel

Monel is an alloy of nickel and copper and brings to our strings the benefit of a strong tone and resistance to corrosion.

The build spec remains a close kept secret but the Monel 400 tape used in Jazz Bass 77 strings brings out their true character over the much less costly flattened stainless steel.

Tension chart






41.74 lbs



34.83 lbs



33.03 lbs



27.71 lbs

Hear them in action

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