Luxilon · Polyester
Luxilon 4G
Co-polyester monofilament with poly-ether-ether compound
Performance ratings
Lab test data
- Stiffness
- 287 lbs/in
- Tension loss
- 21%
- Spin potential
- 4.5
Overview
Luxilon 4G was designed with one goal: better tension maintenance than ALU Power. Made with Luxilon's magical poly-ether-ether compound, 4G strings feature best-in-class durability, control and tension maintenance. Unlike many polys that go dead after 8-10 hours, 4G keeps its feel and control far longer. Its tension holding score of 100% isn't marketing hype - it's backed up by lab data. Control is where 4G shines, making it a workhorse that's reliable, consistent, and built for precision.
Best for
- Control-oriented advanced juniors
- Players who hate restringing frequently
- Players who value precision over power
- Those who find ALU Power loses tension too fast
Not ideal for
- Players needing power assistance
- Anyone with arm sensitivity
- Beginners or early intermediates
- Players wanting a lively, powerful feel
Pros
- Excellent tension maintenance (lab-verified best in class)
- Outstanding control
- More durable than ALU Power
- Consistent feel over time
- Great spin for a control-focused poly
Cons
- Stiff - not the most comfortable
- Lower power level than ALU Power
- Can feel dead to some players
- Demanding on technique
- Premium price point
Stringer notes
No pre-stretch needed due to tension stability. String at normal tension - it holds better than most polys. Recommended restringing every 12-15 hours for consistent feel.
Break-in period
Minimal. Plays consistently from the start.
When to replace
Every 12-15 hours for consistent feel, or when strings notch deeply. Tension stays playable much longer than most polys.
Hybrid setup ideas
- Wilson NXT crosses for comfort
- Natural gut mains for power/comfort blend
- Tecnifibre X-One Biphase crosses
Used by
Stefanos Tsitsipas, Grigor Dimitrov, Alex de Minaur, Feliciano Lopez (former)
Specifications
- Type
- Polyester
- Construction
- Co-polyester monofilament with poly-ether-ether compound
- Gauges
- 16, 16L
- Colors
- Gold, Black
- Set price
- $21–$22
- Reel price
- $170–$200
- Brand
- Luxilon (Belgium)
Sources & reviews
Data verified January 2025. Something wrong? Send a correction.
- Specs: Luxilon Official
- Pricing: Tennis Warehouse
- Lab data: Tennis Warehouse University
- Review: Tennis Warehouse Review
- Review: The Tennis Bros Review
- Review: Tennisnerd Review