Rotosound RB40 Roto Bass Strings 40-100
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The Rotosound RB40 is a medium gauge electric bass string set from the Roto Bass range, designed for players who want a clear, reliable roundwound bass string with a comfortable 40-100 feel.
Made in the UK, these nickel plated steel roundwound strings give a balanced all-round tone with medium output. The 40-100 gauge sits between lighter 35-95 sets and standard 45-105 sets, making it a useful choice if you want a bit more body than a light set but do not want the firmer feel of heavier bass strings.
This is a long scale 4-string bass set.
What Do They Actually Sound Like?
The RB40 set gives a bright, clear roundwound bass tone with a balanced response across the strings.
The nickel plated steel construction keeps the sound lively and defined, but not quite as sharp-feeling as some stainless steel sets. That makes them a good everyday choice for rock, pop, funk, blues, worship, recording, practice and general bass playing.
They are roundwound strings, so they will have more texture and top-end definition than flatwounds.
Why Choose a 40-100 Bass Set?
A 40-100 set is a good middle ground for players who want comfort without going too light.
Compared with a 45-105 set, these should feel a little easier under the fingers, while still giving more substance than a very light gauge. They can be a good choice for standard tuning, regular practice, long playing sessions and players who prefer a responsive feel.
If you want a heavier, tighter low end, a thicker gauge may suit you better. If you want the easiest possible feel, a lighter set may be worth comparing.
Who Are They For?
These strings are a good choice for 4-string bass players who want a medium gauge roundwound set for everyday playing.
They suit beginners, students, gigging bassists, home players and guitarists who also play bass. They are especially useful if you want a balanced gauge that feels comfortable but still gives a proper bass response.
Key Features
Rotosound Roto Bass electric bass strings
Model: RB40
Medium gauge
40-100 gauge set
Nickel plated steel roundwound strings
Long scale bass string set
No silk ends
Balanced all-round tone
Medium output
Made in the United Kingdom
Suitable for 4-string electric bass
Good choice for practice, lessons, recording and live playing
Specifications
Brand: Rotosound
Series: Roto Bass
Model: RB40
Instrument Type: Electric Bass Guitar
String Type: Bass Guitar Strings
Construction: Roundwound
Material: Nickel Plated Steel
Gauge: Medium
Gauge Range: 40-100
Scale Length: Long Scale
Ball End to Taper Length: 940mm / 37"
Silk Ends: No
Tone: All Round
Output: Medium
Country of Manufacture: United Kingdom
Recommended Use: Electric Bass, Practice, Lessons, Recording, Live Playing, Rock, Pop, Funk, Blues and General Bass Use
String Gauges
G String: .040
D String: .060
A String: .080
E String: .100
What’s Included
1 x Set of Rotosound RB40 Roto Bass Medium Electric Bass Strings 40-100
Please Note
This is a 4-string long scale electric bass string set.
Please check the gauge and scale length suitability for your bass before fitting.
These are roundwound strings, not flatwounds.
Not Sure If These Are the Right Bass Strings?
The Rotosound RB40 is a good choice if you want a medium gauge roundwound bass string set with a clear, balanced tone.
If you normally use 45-105 strings and want something slightly easier under the fingers, this 40-100 set is worth considering. If you want a lighter feel, compare with 35-95. If you want a firmer feel and more tension, compare with 45-105 or 50-110.

