Posted on

Yonex BG65 is NOT for Everyone

Yonex BG65 Badminton String

Yonex BG65 is the top selling badminton string in the world. You can find it in virtually ever badminton pro shop and sporting goods store in the world. It is — almost literally — everywhere.

And because players can find it everywhere, they assume that it is meant for everyone.

This assumption, however, is incorrect. While everyone can use it, not everyone should. In fact, as I shall explain below, while BG65 works well for adult men using stiff, heavy men’s racquets, it is does not work as well for anyone else.


First, before I go any further, I should mention that BG65 is Yonex-brand badminton string. Its equivalency in Victor badminton string is VBS-70. These strings are both situated in the all-purpose badminton string category and are virtually identical in usage, if not in price. So everything I say about Yonex BG65 applies equally to Victor VBS-70.

Victor VBS-70 Badminton String
Victor VBS-70 is equivalent to Yonex BG65 but costs about 15% less.

Now that that’s out of the way …


To understand how BG65 became the top selling badminton string in the world, you must understand something about the sport of recreational badminton. Specifically, you must understand the basic demographics.

Regardless of where you are in the world, the majority of recreational badminton players will be men between the ages of 15 and 55. Yes, women, children and seniors all play badminton, but the vast majority of players in the rec-level badminton clubs are men.

Men as a group typically weigh more than women, children and/or seniors. They also tend to be stronger that women, children and/or seniors.

Yonex BG65 has become the top selling badminton string in the world because it looks after the needs of men between 15 and 55. It is thick enough to withstand their powerful off-center hits without breaking easily and powerful enough to allow them to hit the shuttle to all areas of the court.

Unfortunately, it does not serve most women, children and/or seniors equally well.

This group of players typically weighs less than men. They are also not typically as strong as men. So why would anybody imagine that they can use the same string as men?

The truth is, they can’t. Or rather, they shouldn’t. Women, children and seniors need more power to compensate for their relative lack of strength and lower body weights. So they need more powerful strings than men do.

And since they are not as strong as men and therefore don’t hit as hard, they don’t need the same durability from their string as men do. In fact, Yonex BG65 and Victor VBS-70 are both far more durable than most women, children and/or seniors will ever need.

So think about this the next time you bring your child’s racquet in for stringing service.

If your child was playing goal in hockey you wouldn’t equip him with adult men’s goalie pads because that would be ridiculous. A child wearing adult pads would have trouble moving around because his body is too small and his legs are too weak for such bulky equipment. So why would you put adult string in his badminton racquet?

Women, children and seniors are not men and they should not be playing with men’s badminton string.

Just as racquets for this group are softer and have shafts with more repulsion power, the stings in their racquets should be softer and have more repulsion power.

The truth is Yonex BG65 (or Victor VBS-70) is suitable for racquets with medium to extra stiff shafts, it is not the best string for high-flex or medium-stiff shafts. Similarly, while it is suitable for 3U frames and can be used at lower tensions in 4U frames, it is not the best choice for lighter frames, such as 5U or F.

In fact, if you are not a man in his physical prime, you probably don’t need to be using Yonex BG65 at all. It was never really designed for you so — beyond durability — it really isn’t adding anything to your game. In fact, if anything, it may be making the game harder for you to play.

Posted on

Common Questions: Yonex Badminton String Durability

Yonex Aerobite Badminton String Reel

Our expert stringers get a lot of questions about badminton string durability both in-store when they are stringing racquets for customers and at events where they are stringing racquets for top ranked players as part of the Yonex Stringing Team.

Many of the questions we get are based on confusion created by information players have read online.

For example, a common question is: “What is the most durable badminton string”? After which the person asking the question will often volunteer: “I’ve heard that it is Yonex BG65” or “I’ve read online that the most durable badminton string is BG65.”

So let’s look at Yonex BG65 first.

According to Yonex Canada’s annually published chart of badminton strings — currently entitled BADMINTON 2019 STRINGS — BG65 has a durability rating of 8. But what does 8 mean?

Most people assume that this means that it has a durability of 8 out of 10, or 80%. This is not correct.

Yonex durability ratings on this chart range from a low of 5 to a high of 8. In other words, their least durable strings are rated at 5 while their most durable strings are rated as 8.

To be completely honest, this is a misleading way to describe durability because most people assume that the ratings of 5, 6, 7, or 8 are out of 10. So they assume that 8 out of 10, which is 80% is significantly above an imaginary pass/fail line of 50%.

This is completely wrong. A much better way to look at Yonex’ badminton string durability rating system is as follows:

  • Durability rating of 5 = extra low durability
  • Durability rating of 6 = low durability
  • Durability rating of 7 = moderate durability
  • Durability rating of 8 = high durability

On the 2019 version of the chart, the only strings with a durability rating of 5 are Aerosonic and BG66, both of which are unusually thin and fragile strings. So I think we can safely label 5 as “exceptionally low” while the remaining strings can be sorted into the general categories of low, moderate and high durability.

Based on this hierarchy, which I will now call the Racquet Network Badminton String Rating System, Yonex strings are organized as a follows.


Racquet Network Badminton String Rating System

Extra Low Durability

Strings in this category are exceptionally thin and powerful, but may lack durability when used by strong, adult players. While strings in this category can be extremely beneficial for children, some ladies and some seniors — all of whom typically benefit from the increased power provided by thin strings — the materials in these strings can easily be overpowered by strong, athletic players (e.g. men) who frequently hit off center (e.g. recreational men).

  • Aerosonic
  • BG66

The typical player profile for these strings is ladies, seniors and children under 125 lbs using nylon shuttles who hit up more often than they hit down. Adult players using nylon shuttles who are frequently hitting down (smashing) with these strings should expect to break strings frequently. Strings in this category experience maximum durability when installed in racquets that are medium to high-flex.; they are typically not durable enough to be used in stiff or extra stiff racquets.


Low Durability

Strings in this category tend to provide a reasonable balance between power and durability when used by men with feather shuttles. They also offer good durability for weaker/lighter players (ladies, seniors, children) who are playing with nylon shuttles and need some power assistance from their string bed.

  • Aerobite
  • BG66 Force
  • BG66 Ultramax
  • BG68 Titanium
  • BG80
  • BG85

The typical player profile for these strings is men and/or competitive ladies/juniors/seniors who are using feather shuttles. Adult players using nylon shuttles who are frequently hitting down (smashing) with these strings should expect to break strings regularly. Strings in this category are sufficiently durable to be used in racquets with medium to stiff shafts in the 4U to 5U weight ranges.


Moderate Durability

Strings in this category tend to provide moderate durability when used by men who are playing with nylon shuttles. These strings should be avoided by weaker/lighter players (ladies, seniors, children) who are playing with nylon shuttles.

  • Aerobite Boost
  • BG65 Titanium
  • BG80 Power
  • BG70 Pro
  • Nanogy 98
  • Nanogy 99

The typical player profile for these strings is adult men who are using nylon and/or feather shuttles. Strings in this category are sufficiently durable to be used in racquets with medium to extra stiff shafts in the 3U and 4U weight ranges.


High Durability Strings

Strings in this category are exceptionally stiff and durable, but may lack power when used by ladies, seniors and children. While strings in the category can be extremely beneficial for adult men — who often hit so hard that they overpower the materials and break strings frequently — these strings lack power and can actually make the game harder to play for weaker players with lower body masses (under 150 lbs).

  • Nanogy 95
  • BG65

The typical player profile for these strings is athletic boys and adult men using nylon shuttles who hit down (smash) frequently. Strings in this category experience minimum playability when installed in racquets that are stiff and extra stiff. These strings should be reserved for stiff and extra stiff racquets that are in the 2U and 3U weight ranges.

Posted on

How to Customize the Astrox 88

A pair of Yonex Astrox 88D Badminton Racquets strung with BG80 Power.

About the Yonex Astrox 88

The Astrox 88 comes in two versions. The Astrox 88D and the Astrox 88S. The models are identical with one exception, the 88S is about a centimeter shorter than the 88D. This is because the 88S is designed for players who play mostly from mid-court to front court while the 88D is for players who play mid- to back-court. Given the marketing for this racquet, stringers should expect that the Astrox 88D will be used by smashers and drivers while the 88S will be used primarily for drops, lifts and clears.

How to String the Astrox 88D

If you are stringing for advanced to elite level men using feather shuttles, we recommend using one of these strings.

If you are stringing for rec level men using nylon shuttles, then we recommend selecting something from this group.

Nylon shuttles, of course, are much harder on strings than feather shuttles. So some men may break strings more often than they like using string from the group above. In that case, it may be advisable to switch to something more durable.

How to String the Astrox 88S

As this is a shorter racquet intended for front court usage, it is most likely to be used by shorter and lighter players (ladies, for example) than the 88D. Our advice, therefore, it to string it with thinner, less durable strings.

Our string suggestions for players using feather shuttles includes this group of string options…

Our string suggestions for players using nylon shuttles includes this group of string options ..

As always, these suggestions are just starting points. Players who are having particular issues are advised to come into the store and discuss options with our experts.

Posted on

How to String the Yonex Astrox 88

A pair of Yonex Astrox 88D Badminton Racquets strung with BG80 Power.

How to String the Yonex Astrox 88

The instructions on this page are provided as a courtesy to independent racquet stringers in our network. For more information, please consult our YouTube Channel which features hundreds of full movies and time lapse videos illustrating how to string a large variety of racquets of all kinds.


Use the YouTube speed settings to slow this down if necessary. If you have questions, please post them in the video comment’s section.


How to String this Racquet

Length Mains 18.5′
Length Crosses 14.5′
Tension Printed on frame
Pattern 20×21
Start Mains Head
Mains Skip 7H, 9H, 11H, 11T
Tie Off Mains 8T
Start Crosses 9T
Tie Off Crosses 6T
Last Cross 7H
Tie Off Crosses 5H

The outside two mains on either side of this racquet should be finished using a standard Yonex double-back method. For this racquet, the double path is 9T to 12T to 16H to 14H to 10T before tying off at 8T.

Yonex Badminton Racquet Stringing Instructions

Posted on

Dato Method High Tension Badminton Racquet Stringing

Dato Method Badminton Stringing Services Calgary

Dato Method and Advanced Dato Method are stringing methods that allow badminton racquets to be strung at extremely high tensions. Both methods were developed in Calgary by stringers at Racquet Network over a period of years between 2004 and 2018.

The word “dato” means “beloved”. The term “Dato Method” reflects the love and attention to detail that the racquet stringer puts into his/her work when using this method to string badminton racquets.

Dato Method racquet stringing is a center-out stringing technique for badminton racquets that utilizes one piece of string and two Parnell knots. It can use used at any tension, but it was created as a way to string at high tension while minimized the chances of breakage during stringing.

Dato Method represents a major advance over traditional high tension stringing methods in which stringers over-tension some areas of the string bed and under-tension other areas while hoping to achieve an estimated overall tension.


Dato Method Badminton Racquet Stringing


Dato Method stringing ensures that every string in a badminton racquet is pulled to a very specific tension. There are no estimates in Dato Method. The pattern followed allows stringers to string racquets at extremely high and extremely precise tensions without breaking the frames.

Advanced Dato Method stringing allows the customer to specify different tensions on different strings. For example, a customer may want the center mains or crosses to be at 0.2 lbs higher tension than outside mains or crosses. Or they may want to increase tension by 0.1 lbs on every main string outside of the sweet spot.

At Racquet Network, all Dato Method stringing occurs after hours when there are no distractions and the stringer cannot be rushed. Pull speeds are reduced to absolute minimums and several pauses are built into the stringing process in order to allow the frame to absorb all of the additional tension.


Dato Method Badminton Racquet Stringing


When performing the Dato Method, stringers double back on the outside mains and then string the middle crosses first. This prevents the loop from becoming deformed at either the top or the bottom.

Once the loop is stabilized by installation of the middle crosses, they complete the bottom crosses This ensures that loop is fully stabilized before starting the weakest part of the frame, which is the top of the loop furthest from the handle.

When stringing at tensions over 32 lbs., Dato Method stringers take additional steps to stabilize both the top and bottom of the loop order to prevent it from changing shape while they are stringing the mains.

In addition to the steps above, the stringing machine must be precisely re-calibrated immediately prior to all high tension stringing jobs.

All of these extra steps and precautions increase the stringing time from about 20 minutes (standard stringing) to well over an hour. The higher the tension, the longer it takes. Hence, the relevance of the term “Dato”.