Quick Verdict
A high repulsion badminton string for players who want a sharper response, a lively feel, and more speed from every shot.
What This Product Is Used For
This is a badminton string set designed for restringing a badminton racket when you want a more responsive and performance focused feel. The Yonex BG66 Ultimax uses a 0.65 mm gauge and high intensity multifilament nylon construction to deliver high repulsion with a medium feeling. Compared with thicker or more muted strings, this type of string is chosen for a livelier response and a crisper hitting experience. Players choose it over simpler options because it helps the racket feel faster and more reactive during play.
Who This Product Is Best Suited To
This product is best suited to players who care about shot response and want their racket to feel quick and lively through rallies. It works well for users who regularly restring, notice changes in feel, and want a string that supports a more performance focused setup rather than a basic entry level restring.
Key Benefits at a Glance
• High repulsion helps create a faster and more lively response
• 0.65 mm gauge gives a sharper and more performance led feel
• Medium feeling offers a useful balance between response and control
• High intensity multifilament nylon supports a more refined playing experience
• 10 m set is ready for badminton racket restringing
• Bright orange colour adds an easy visual refresh to the racket
• Suitable for players who want a quicker and more reactive string bed
• Yonex branding gives reassuring familiarity for badminton users
Pros and Cons
Pros
• High repulsion helps shots feel quicker and more responsive
• Medium feeling makes the string easier to live with than an overly harsh setup
• Bright orange finish gives the racket a fresh and distinctive look
Cons
• Thinner 0.65 mm gauge may not suit players who prioritise a more solid string feel
• Product details do not include durability guidance or tension advice
Real World Performance and Day to Day Use
In day to day use, this string is aimed at players who want their racket to feel lively and more responsive at contact. The 0.65 mm gauge is one of the most important details here, because it points to a thinner string build that is chosen for feel and repulsion rather than a heavier, more muted response. Combined with the high repulsion profile and high intensity multifilament nylon construction, it is built to give the racket a quicker and more energetic character during play.
The medium feeling also helps reduce one of the common concerns with performance strings, which is that a very lively setup can sometimes feel too extreme for regular use. That makes this a good fit for players who want speed and touch without moving to something described as overly hard. The 10 m set length keeps it straightforward for restringing, and the orange finish adds a distinctive visual detail if you want your racket to stand out.
Choose this if
You want a lively badminton string with high repulsion and a sharper feel from a thin 0.65 mm gauge
Skip this if
You prefer a thicker string or need detailed durability and tension information before buying
Why We Like This Product
The YPC.co.uk Team likes this because it gives players a more responsive racket feel without making the choice overly complicated. It also helps avoid the mistake of picking a flat feeling string when what you really want is a livelier response, and it reduces the regret of a restring that does not noticeably change how the racket plays.
Comparisons With Similar Systems
Compared with thicker badminton string
Better when
You want a quicker response and a more lively hitting feel
Alternative better when
You want a more solid feeling string and place less focus on repulsion
Compared with basic badminton restring set
Better when
You want a more performance focused string with high repulsion characteristics
Alternative better when
You only need a simple standard restring without a stronger focus on feel
Alternatives Worth Considering
Thicker badminton strings
Standard badminton restring sets
Control focused badminton strings
Durability focused badminton strings
Tips for Getting the Best Performance
Use this string when you want a more lively racket response rather than a duller feel.
Match it with a racket setup that suits players who notice string feel and shot feedback.
Keep note of how the medium feeling compares with your usual restring choice.
Choose this orange version if you want the restring to stand out visually as well as in feel.
Have it fitted as a full restring set using the supplied 10 m length.
Full Technical Specification
Product Type
Badminton string set
Brand
Yonex
Model
BG66 Ultimax
Gauge
0.65 mm
Length
10 m
Colour
Orange
Repulsion
High
Feeling
Medium
Material
High intensity multifilament nylon
Buyer’s Guide
Buy this if you want faster response, easier shot speed, and a more lively badminton string feel.
Do not buy this if you need a thicker, simpler string or stronger durability detail before choosing.
Frequently Asked Questions
What is the Yonex BG66 Ultimax used for?
Yonex BG66 Ultimax is used to restring a badminton racket for a more lively and responsive playing feel.
What gauge is this badminton string?
Yonex BG66 Ultimax has a 0.65 mm gauge.
How long is this string set?
This badminton string set is supplied in a 10 m length.
What does high repulsion mean for this string?
Yonex BG66 Ultimax is designed for a lively response that helps the racket feel quicker at contact.
How does this string feel when playing?
This badminton string is described as having a medium feeling.
What material is the string made from?
Yonex BG66 Ultimax uses high intensity multifilament nylon.
Is this string a good choice for players who notice racket feel?
This badminton string set is better suited to players who want to feel a clearer difference in response and repulsion.
What colour is this version?
This Yonex BG66 Ultimax string set is orange.





