Detail 01
45-105 gauge
The most common bass gauge. Balanced tension in standard tuning, and usually a straight swap with no setup changes.
Product detailSKU #1274115044764
RotosoundRS66LD Long Scale Swing Bass Strings - (45-105)
1/2
Independent shopping perspective
The Korena take
Standard 45-105 roundwound set for long-scale four-string bass. The default gauge most players run, at a low price.
Strong match
Who this is for
- Standard E-A-D-G tuning on a 34-inch scale bass
- Players who want bright, aggressive roundwound attack
- Restringing regularly without watching the cost
Consider the trade-offs
When to look elsewhere
- Short-scale basses, which need a shorter set
- Players who want warm thump — flatwounds do that better
- Fretless players worried about fingerboard wear
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Long scale
Sized for 34-inch instruments. The taper at the ball end is cut to clear the bridge on a full-scale bass.
Detail 03
Roundwound
Ridged outer winding gives bite and sustain, plus finger noise on position shifts. Wears frets faster than flatwounds.
Detail 04
105 low E
A thicker E than lighter sets. Holds pitch better and stays tighter if you occasionally drop to D.
Detail 05
Four-string set
E-A-D-G only. Five-string basses need a separate set with a low B.
Final check
Know before you order
- 01Verify your bass is long scale, roughly 34 inches nut to saddle
- 02Stretch each string by hand after tuning or pitch drifts for days
- 03Set only — no winder, cutters, or cleaning cloth
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What does 45-105 mean?
The thickness in thousandths of an inch of the thinnest and thickest strings. The G measures .045 and the E measures .105, with the A and D falling in between.
02Do I need a setup after installing these?
Usually not if you are coming from another 45-105 set at standard tuning. Coming from a much lighter or heavier gauge, check neck relief and intonation.
03How long before the brightness fades?
Roundwounds lose their top end as sweat and skin oils fill the windings. Wiping the strings down after playing noticeably extends the bright period.
04Can I use these on a fretless bass?
You can, but roundwound windings cut into an unfinished fingerboard over time. Fretless players who want the board to last often choose flatwounds instead.
