Badminton · Level 5: Upper-Intermediate · Sub-level 5.4
Rackets, Strings and Shoes
10 tests · 100 facts · updated 29 October 2026 · markdown
Badminton equipment is a matter of fit rather than rules: the BWF Laws of Badminton 2027 limit a racket's size, not its weight, and require a flat stringed area, with the overall frame no longer than 680 mm. A hit off the frame is legal. Within those limits, modern graphite composite frames are very light, a long way from the wooden, steel and aluminium rackets of the past. Weight is marked in U, where a higher number is lighter, so 4U is lighter than 3U.
Lighter rackets swing and react faster, while mass adds stability. A balance point nearer the head means a head-heavy frame that helps power, a head-light frame moves quickly, and even balance suits all-round play. Flexible shafts help slower swings and beginners; stiff shafts give control at speed for fast swings. Isometric heads, now standard, are squarer and widen the sweet spot. Strings follow the same logic: tension, given in lbs or kg, relaxes with play, and lower tension gives more rebound for slower swings, while gauge is thickness, around 0.6 to 0.7 mm, and thicker strings last longer.
The facts below cover these choices along with grips and wraps, court shoes with non-slip gum soles, socks and clothing, and how to match a set-up to a player's style, technique first.
Each test below is ten questions on Insporta. The list under a test is what the questions check: one fact per question, with the source it was written from. Read it before the test, or come back from a wrong answer.
Test 1Racket weightTake a test
Modern frames are very light.
Source: General badminton reference · recall
4U is lighter than 3U.
Source: General badminton reference · recall
Lighter rackets are easier to swing.
Source: General badminton reference · applied
Mass adds stability.
Source: General badminton reference · recall
Light frames move quickly.
Source: General badminton reference · recall
Light frames react faster.
Source: General badminton reference · applied
The Laws limit size, not weight.
Source: BWF Laws of Badminton 2027 (player's view) · recall
Higher U is lighter.
Source: General badminton reference · recall
Think, try, check, choose.
Source: General badminton reference · recall
Higher U is lighter.
Source: General badminton reference · applied
Test 2Balance pointTake a test
The balance point sits nearer the head.
Source: General badminton reference · recall
Head weight helps power.
Source: General badminton reference · recall
Light heads move quickly.
Source: General badminton reference · recall
Balanced in the middle.
Source: General badminton reference · recall
The balance point can be found by hand.
Source: General badminton reference · recall
Head-light frames react fast.
Source: General badminton reference · applied
Even balance suits all-round play.
Source: General badminton reference · recall
From head to handle.
Source: General badminton reference · recall
Flat, rest, slide, note.
Source: General badminton reference · recall
A balance point near the head means head-heavy.
Source: General badminton reference · applied
Test 3Shaft stiffnessTake a test
Flex helps players with slower swings.
Source: General badminton reference · recall
Stiff shafts suit fast swings.
Source: General badminton reference · recall
Stiffness gives control at speed.
Source: General badminton reference · recall
Flex helps with less technique.
Source: General badminton reference · recall
Graphite composites are standard.
Source: General badminton reference · recall
Flex suits slower swings.
Source: General badminton reference · applied
Wooden, then steel and aluminium.
Source: General badminton reference · recall
The history of frames.
Source: General badminton reference · recall
Flex for slow, stiff for fast.
Source: General badminton reference · recall
Flexible suits beginners.
Source: General badminton reference · applied
Test 4Frame shapesTake a test
Isometric heads are now standard.
Source: General badminton reference · recall
A squarer head widens the sweet spot.
Source: General badminton reference · recall
The ideal contact zone.
Source: General badminton reference · recall
Less drag means faster swings.
Source: General badminton reference · recall
The Laws require a flat stringed area.
Source: BWF Laws of Badminton 2027 (player's view) · recall
A frame hit is legal.
Source: BWF Laws of Badminton 2027 (player's view) · recall
The overall frame may not exceed 680 mm.
Source: BWF Laws of Badminton 2027 (player's view) · recall
From head to handle.
Source: General badminton reference · recall
Centre is best.
Source: General badminton reference · recall
Squarer heads are isometric.
Source: General badminton reference · applied
Test 5String tensionTake a test
Tension is in lbs or kg.
Source: General badminton reference · recall
Tight strings suit fast swings.
Source: General badminton reference · recall
Lower tension gives more rebound for slower swings.
Source: General badminton reference · recall
High tension can strain the arm and strings.
Source: General badminton reference · recall
Strings relax with play.
Source: General badminton reference · recall
Lower tension helps power for slower swings.
Source: General badminton reference · applied
Stringers use machines.
Source: General badminton reference · recall
Lower number is looser.
Source: General badminton reference · recall
Remove, mount, string, tie.
Source: General badminton reference · recall
Wear and tension cause breaks.
Source: General badminton reference · applied
Test 6String gaugeTake a test
Gauge is thickness.
Source: General badminton reference · recall
Thin strings feel lively.
Source: General badminton reference · recall
Thick strings last longer.
Source: General badminton reference · recall
Durability for power players.
Source: General badminton reference · recall
Around 0.6 to 0.7 mm.
Source: General badminton reference · recall
Thicker strings last longer.
Source: General badminton reference · recall
Thin tight strings sound sharper.
Source: General badminton reference · recall
Smaller number is thinner.
Source: General badminton reference · recall
Thicker lasts longer.
Source: General badminton reference · recall
Thicker strings are more durable.
Source: General badminton reference · applied
Test 7Grip size and wrapsTake a test
Comfortable size helps a relaxed grip.
Source: General badminton reference · recall
Overgrips go over the base grip.
Source: General badminton reference · recall
Towel grips soak up sweat.
Source: General badminton reference · recall
Slippery grips raise strain and risk.
Source: BWF Coaches' Manual L1, Module 11 · recall
Strain on the forearm tendons.
Source: BWF Coaches' Manual L1, Module 11 · recall
A slightly thicker grip can relax the hand.
Source: General badminton reference · applied
Towel grips absorb sweat.
Source: General badminton reference · recall
Off, start, wrap, finish.
Source: General badminton reference · recall
Each layer adds thickness.
Source: General badminton reference · recall
A wrap over the original grip.
Source: General badminton reference · applied
Test 8Court shoesTake a test
Non-slip soles prevent slips.
Source: BWF Coaches' Manual L1, Module 11 · recall
Running shoes are built for forward movement.
Source: BWF Coaches' Manual L1, Module 11 · recall
Support wears out.
Source: BWF Coaches' Manual L1, Module 11 · recall
Break new shoes in first.
Source: BWF Coaches' Manual L1, Module 11 · recall
Loose laces are a hazard.
Source: BWF Coaches' Manual L1, Module 11 · recall
Gum soles grip.
Source: General badminton reference · recall
Worn or dirty soles slip.
Source: BWF Coaches' Manual L1, Module 11 · applied
Choose, fit, break in, replace.
Source: BWF Coaches' Manual L1, Module 11 · recall
Court shoes are best.
Source: BWF Coaches' Manual L1, Module 11 · recall
Raised soles are unstable sideways.
Source: BWF Coaches' Manual L1, Module 11 · applied
Test 9Socks, clothing and supportTake a test
Free movement and comfort.
Source: BWF Coaches' Manual L1, Module 11 · recall
Cushioning and comfort.
Source: General badminton reference · recall
Stud earrings may be fine; long ones are risky.
Source: BWF Coaches' Manual L1, Module 11 · recall
Supports protect weak joints.
Source: General badminton reference · recall
Loose zipped legs can trip.
Source: BWF Coaches' Manual L1, Module 11 · recall
Dry clothing is more comfortable.
Source: General badminton reference · recall
Sweat control.
Source: General badminton reference · recall
Shoes protect the most.
Source: BWF Coaches' Manual L1, Module 11 · recall
Socks, shoes, laces.
Source: BWF Coaches' Manual L1, Module 11 · recall
Long earrings are a risk.
Source: BWF Coaches' Manual L1, Module 11 · applied
Test 10Choosing equipment for your gameTake a test
Fit the racket to the player.
Source: General badminton reference · recall
Pros use set-ups for very fast swings.
Source: General badminton reference · applied
Easy power and comfort.
Source: General badminton reference · recall
Power and control from the back.
Source: General badminton reference · recall
Feel is personal.
Source: General badminton reference · recall
Shoes protect ankles and knees.
Source: BWF Coaches' Manual L1, Module 11 · recall
Technique first.
Source: General badminton reference · recall
Light and flexible are easiest.
Source: General badminton reference · recall
Style, try, frame, strings.
Source: General badminton reference · recall
Beginners do best with light, flexible frames.
Source: General badminton reference · applied
Questions people ask
- What does 3U or 4U mean on a badminton racket?
- The U number marks the racket's weight class, and a higher U is lighter, so a 4U frame is lighter than a 3U. Lighter rackets are easier to swing and react faster.
- Is a head-heavy or head-light racket better?
- A head-heavy racket, with its balance point nearer the head, helps power, while a head-light racket moves quickly. Even balance suits all-round play, and feel remains personal.
- Should a beginner use a stiff or flexible racket?
- Flexible shafts help players with slower swings and less developed technique, so beginners do best with light, flexible frames. Stiff shafts suit fast swings.
- Do the Laws of Badminton limit racket weight?
- No, the Laws limit size, not weight. The overall frame may not exceed 680 mm and the stringed area must be flat.
- What string tension should I use?
- Tight strings suit fast swings, while lower tension gives more rebound for slower swings. High tension can strain both the arm and the strings.
- What is string gauge?
- Gauge is the string's thickness, usually around 0.6 to 0.7 mm, with a smaller number meaning thinner. Thin strings feel lively, thicker ones last longer.
- Why not play badminton in running shoes?
- Running shoes are built for forward movement, and raised soles are unstable sideways. Court shoes with non-slip soles grip and protect the ankles and knees.
- What is an overgrip for?
- An overgrip is a wrap over the original grip, and each layer adds thickness. A slightly thicker grip can relax the hand, while towel grips soak up sweat.
Sources
BWF Coaches' Manual Level 1 (2017), BWF regulations and history, Olympedia; original questions authored, nothing reproduced. Numbered rules belong to the Rules category (Badminton - Laws of Badminton).
- General badminton reference78
- BWF Coaches' Manual L1, Module 1118
- BWF Laws of Badminton 2027 (player's view)4