L-Tec 4S 12m Set

L-TEC 4S

L-Tec 4S is a four-sided co-polyester with rounded edges — enough shape to add spin and a subdued, controlled feel, without the harshness of a sharp-edged string. It is priced very low by the reel. It comes in yellow, black and silver.

It is the everyday spin-and-control string in L-Tec's range — grabbier than OS ParaDOX, softer and more muted than the aggressive 4ST Helix.

On-Court Performance

The rounded four-sided profile grips the ball for topspin with a controlled, dipping trajectory.

The feel is subdued and low-powered — this rewards players who bring their own pace.

Comfort is limited and tension slides at the normal rate; string it low and restring on a schedule.

Who Should Use It

• Topspin players who want a muted, controlled shaped poly

• Advanced club players on a tight budget

• Players who found sharp-edged spin strings too harsh

• Hybrid users wanting a controlled shaped main

• Frequent restringers

Who Should Not Use It

• Players with arm sensitivity

• Players who need free depth and power

• Players who want the maximum bite of 4ST Helix

• Beginners

Hybrid Setups & Performance Adjustments

Power
String low, or pair with a multifilament in the mains, since it adds little depth.

Control
A full bed at mid tension is controlled — the shape brings the ball down.

Spin
Keep 4S in the mains at mid tension so the edges can grip; choose 4ST Helix for more.

Comfort
Firm — drop tension and cross with a soft multi.

Tension Stability
Normal co-poly slide — restring on a schedule.

Durability
Use a thicker gauge if the edges wear quickly.

Technical Specifications

Typology:
Monofilament

Shape:
Four-sided with rounded edges

Composition:
Co-polyester (copolymer)

Available Colours:
Yellow / Black / Silver

Available Gauges:
1.25 mm