RS66LC |Rotosound Swing Bass 66 String Set Electric Bass Stainless Steel 40-95

£24.99 GBP
Tax included. Shipping calculated at checkout.

This product is unavailable


FREE Setup with all our guitars

Our in house Luthiers QC and Setup every guitar we sell. We're not like other guitar shops.
Please get in touch if you have any questions regarding setups.

Shipping Price Guide
Christmas 2023 Shipping Cut-off Dates

For Standard Delivery Monday 18th December - Orders must be placed by 1pm. 
(Please note we can not gaurantee it will arrive before as this service is down to Royal Mail. If you want a gaurantee please select express shipping at checkout*)

For Express Delivery we advise you get your order in by 1pm on 20th December. 
We use APC Overnight for shipping express parcels, and they are usually very good. 

Shipping Pricing Guide

Standard Delivery for Strings + Picks - £1.50

Standard Delievery for Accessories + Vinyl Records - £3.50

Express Guitar & Amp Delivery (Next Working Day on orders placed before 1PM) - £9.99

Express Guitar & Amp Shipping (Next Working Day on orders placed before 1PM)  - FREE (Orders over £299)

There will be a small surcharge for Scottish Highlands & Ireland, please contact us for more info. 

Dispatch Times

We aim to dispatch guitar orders SAME DAY, if you place your order before 1PM
Depending on the time of year this may change.
The reason we don't always ship immediately, is all our guitars go through our workshop before shipping, to ensure it's setup and playing great for you.

If you require your guitar on a specific date, please get in touch with us after you place your order.

International Shipping

Shipping to most of Europe will be £80 via UPS. Please note, we're not liable for any import duty or charges you may incur due to Brexit. Please contact us for a quote.

USA Shipping £150 via UPS. - (Please contact us for a quote).

Rest of World £POA (Please contact us for a quote).

We expertly pack every item we send included in the price. 

Please get in touch with us if you have any questions. 
Sales@mayalls.co.uk | 01492 588279

14 DAY Returns Policy

We stand by our customers! If you're not happy with your purchase, we will help you find something else!

We offer 14 day returns on all guitars.


string set electric bass stainless steel 40-95, medium gauge
040-060-075-095 long scale

The string that started a revolution and brought the bass player from the back line to the front.

This is the string that James How and John Entwistle perfected into what was to become the industry standard. The bright punchy high energy sound this string offered and so much a big part of early rock music as we know it, quickly grew in popularity to all four corners of the globe and remains the leading contender to this present day.

The John Entwistle connection 1966

“It was in 1966 and I was looking for that Danelectro sound again. I tried everybody’s strings but the E and the A’s just didn’t work. It was the same with Rotosound but there was something about them that was almost there but not quite. To solve the problem I got in touch with James How and told him his D and G strings were great but the E and A didn’t vibrate properly.

He told me to take my bass along to Rotosound and have some strings made until they got it right. After a couple of hours, we realised that the problem wasn’t in the wire winding, but in the core of the string. You could see that the strings vibrated in a big circle and that was wrong; the core needed to be thicker.

We also made the overall gauges a bit heavier and they sent me away with 12 sets to use. A couple of days later they called and asked if I objected to them putting my name to the strings and selling them commercially. I told them I didn’t mind as long as they kept me supplied with free strings!

But then we had to do the same with medium and short scale strings because I had loads of different basses by then. Those strings, the RS 66 sets, were the first that vibrated properly other than the Danelectros.”


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.