Quick Verdict
The YONEX BG66 Ultimax 0.65mm Badminton Set is a thin gauge badminton string option for players who want fast repulsion, precise control, and a more responsive feel from every shot.
What This Product Is Used For
The YONEX BG66 Ultimax is used for restringing a badminton racket when you want a balance of speed, control, and durability in one setup. Compared with a thicker badminton string, this 0.65mm option is aimed at players who want a quicker, more lively response off the string bed. Players choose it over simpler all purpose strings when they want stronger repulsion and a more performance focused feel on court.
Who This Product Is Best Suited To
This product is best suited to players who care about shot response, want better feel during fast exchanges, and prefer a string that helps keep the racket feeling lively. It suits users who restring with intent, notice small changes in touch and speed, and want a setup that supports confident attacking and controlled placement.
Key Benefits at a Glance
• Thin 0.65mm gauge helps create a fast and lively response
• High repulsion supports quicker shuttle speed off the strings
• Balanced design offers a useful mix of control and durability
• High Intensity MULTIFILAMENT material gives a reliable performance feel
• Black finish keeps the racket setup looking clean and sharp
Pros and Cons
Pros
• Fast repulsion helps shots feel quicker and more responsive
• Thin gauge design gives a more precise and lively feel
• Balanced control and durability make it easier to choose with confidence
Cons
• Thin 0.65mm gauge may not suit players who prefer a thicker string
• Medium feeling may not suit players looking for a firmer response
Real World Performance and Day to Day Use
In day to day play, the YONEX BG66 Ultimax is built for players who want a string that feels quick without losing control. The 0.65mm gauge is one of the key details because it helps create a faster, more responsive feel, while the high repulsion property supports better speed off the racket. The stated medium feeling is also important because it gives players a clearer idea of how the string is meant to play during regular sessions. One of the biggest buying worries with badminton strings is whether they will feel too dull or too specialised, and this model answers that by aiming for a balance of maximum speed, control, and durability rather than focusing on only one area.
Choose this if you want a quick, lively badminton string with high repulsion and a thinner gauge feel.
Skip this if you prefer a thicker badminton string or want a different feel than medium.
Why We Like This Product
The YPC.co.uk Team likes this because it offers a strong blend of speed and control, helps buyers avoid the mistake of choosing a string that feels too flat, and reduces the regret of picking a setup that does not feel lively enough on court.
Comparisons With Similar Systems
Compared with thicker badminton string
Better when you want faster repulsion and a more lively response
Alternative better when you want a thicker gauge feel
Compared with firmer feeling badminton string
Better when you want medium feeling with high repulsion and balanced control
Alternative better when you want a firmer response from the string bed
Alternatives Worth Considering
• Thicker badminton string
• Firmer feeling badminton string
• Control focused badminton string
• Durability focused badminton string
Tips for Getting the Best Performance
Use this string when quick response and lively shuttle speed matter more in your game.
Match it to the kind of feel you already enjoy, especially if medium feeling suits your current setup.
Keep a note of the 0.65mm gauge when comparing future restringing options so you can judge whether you want to stay with a thinner string.
Choose this type of string when you want a balanced mix of speed, control, and durability rather than chasing only one property.
Full Technical Specification
Brand
YONEX
Model
BG66 Ultimax
Product Type
Badminton string set
Colour
Black
Material
High Intensity MULTIFILAMENT
Gauge
0.65mm
Length
10/200m
Length
33/656 ft
Key Properties
High Repulsion
Feeling
Medium Feeling
Buyer’s Guide
Buy this if you want faster repulsion, easier shot response, and stronger control from a thin badminton string.
Do not buy this if a thicker string or a firmer feeling setup would suit your game better.
Frequently Asked Questions
What is the YONEX BG66 Ultimax 0.65mm Badminton Set used for?
The YONEX BG66 Ultimax 0.65mm Badminton Set is used for restringing a badminton racket when you want speed, control, and durability in one string setup.
What is the gauge of the YONEX BG66 Ultimax?
The YONEX BG66 Ultimax uses a 0.65mm gauge.
What material is this badminton string made from?
The YONEX BG66 Ultimax is made from High Intensity MULTIFILAMENT material.
What playing feel does this string offer?
The YONEX BG66 Ultimax is listed with a medium feeling.
What is the main performance property of this string?
The YONEX BG66 Ultimax is designed with high repulsion to support a quicker response.
What lengths are listed for this set?
The YONEX BG66 Ultimax is listed with lengths of 10/200m and 33/656 ft.
Who is this string best suited to?
The YONEX BG66 Ultimax is best suited to players who want a lively response, fast repulsion, and a balanced feel between control and durability.
What colour is the YONEX BG66 Ultimax set?
The YONEX BG66 Ultimax set comes in black.








