Most factory strung rackets come strung at about 18lbs – 20lbs. At the high end, some professional players have their rackets strung in excess of 30lbs. For the majority of players, between 20lbs and 30lbs is normal between a range of beginners to advanced players, including some professionals.
Keeping this in view, what is the best string tension for a badminton racket?
As a general rule, you would need to have good strength if you wish to tie your string at 27 lbs or above. For average players, 22-26 lbs will be good enough. Over-loose string will cause the string bed to be too bouncy, and hence make the control of your shot execution harder.
Likewise, what is the best tension for smashing?
For the average player, the best tension would be 24-27 pounds of tension. This is a nice middle ground where the strings are tight enough to have a good feel but also slack enough to make generating power in smashes and other shots efficient.
Which string tension should I use?
When it comes to the actual tension, most manufacturers recommend stringing elastic materials like nylon or natural gut around 50-60 lbs. If using a stiffer string like polyester, drop the tension to avoid arm injuries.
The higher your string tension, the more control you’ll have while the looser your string tension, the more power. Here are the above tension ranges again, but adjusted for power or control: Nylon/Gut: 50-60lbs (22.5-27kg)
To calculate the tension of a string in pounds use the formula below, inserting the three variables described above: T (Tension) = (UW x (2 x L x F)2) / 386.4 To convert the result into Newtons, simply multiply by 4.45. If you know what tension you want the string to have, you can calculate the string unit weight.
A highly accomplished player may find that their tensions need to be 24lbs before they notice a leveling out on power. A lower level player may find that this is way too high and 20/21 lbs is a max.