Tecnifibre Black Code 4S 18g Tennis String Set

Stoke-on-Trent, United Kingdom  ·  Strings > 18g

Tecnifibre Black Code 4S 18g Tennis String Set

This is a 1.20mm square-edged spin string that will absolutely break sooner than a thicker one — and I want you to hear that as an opportunity, not a warning. It bites harder because it gives more of itself. Now: it will not sell you a thing until you've walked Stoke-on-Trent with it. Say yes. Say yes to the tour.

↓   Tour Stoke-on-Trent, United Kingdom

Four stops before the checkout

Stoke-on-Trent, United Kingdom
01
cardio tennis class Lake Ridge — the Tecnifibre Black Code 4S 18g Tennis String Set photographed at Gladstone Pottery Museum in Stoke-on-Trent, United Kingdom. A wide view of the cobbled yard ringed by squat brick bottle ovens and low workshop ranges, under a flat, cold, overcast winter sky with breath showing. A demonstrator at a potter's wheel is throwing a bowl with both hands wet and a school group leaning in over the rail, a woman in an apron carries a board of unfired plates across the cobbles, and two children run for the mouth of an open kiln. The string set lies on a workshop windowsill by the wheel, faintly glowing.
Stop one

Gladstone Pottery Museum, Longton

Tecnifibre Black Code 4S 18g Tennis String Set: Lot one, a complete Victorian potbank, five bottle ovens, do I hear interest — Thomas and Michael Shelley buy the site beside the turnpike 1774, by 1787 supplying cream-ware to Wedgwood's standard, three ovens by 1840, three-storey front you're looking at 1856, ovens fired for the last time March 1960 as the Clean Air Act of 1956 bites, decorating shop and packing house running to May 1970 when Thomas Poole and Gladstone China shut the doors, rescued 25 March 1971 with the bulldozers already booked — going, going. Four thousand bottle ovens once stood over the Potteries. Forty-six left. Five of them are here. Priceless.

02
cardio tennis class Lake Ridge — the Tecnifibre Black Code 4S 18g Tennis String Set photographed at Middleport Pottery in Stoke-on-Trent, United Kingdom. A close view down a narrow brick cart passage between the factory ranges to the canal wharf beyond, hard low golden-hour sun coming straight up the passage and firing the brickwork orange, the surviving bottle oven above the roofline. A paintress at an open workshop door is banding a jug on a turntable mid-stroke, a man wheels a barrow of moulds through the passage towards camera, and a narrowboat is being tied up at the wharf by two people leaning on ropes. The string set rests on a stack of plaster moulds beside the door, softly luminous.
Stop two

Middleport Pottery, Burslem

Tecnifibre Black Code 4S 18g Tennis String Set: Lot two, Burgess and Leigh, established 1862, William Leigh and Frederick Rathbone Burgess, moved to the Hill Pottery Burslem 1868, moved again 1888 to '89 into this works, built on an old saggar manufactory, straight onto the canal bank, called a model pottery in its day — and the canal, note the canal, the Trent and Mersey opened 1777, a hundred and eleven years ahead of the factory that leans on it. Still running. Still Burleigh ware. The last working Victorian pottery factory in Britain. Not the last of a few. The last. Sold.

03
cardio tennis class Lake Ridge — the Tecnifibre Black Code 4S 18g Tennis String Set photographed at Trentham Estate in Stoke-on-Trent, United Kingdom. A wide high view down the Italian Gardens to the long lake, parterres and clipped box laid out in pattern between stone balustrades, seen in bright breezy summer light with big cumulus shadows sliding across the grass. Families are spread out on the lawns, a group of walkers sets off along the lakeside path, a gardener steers a mower along an edge, and a rowing boat crosses open water in the middle distance. The string set rests on the top of a stone balustrade in the foreground, glowing faintly.
Stop three

Etruria Industrial Museum (Jesse Shirley's Bone and Flint Mill)

Tecnifibre Black Code 4S 18g Tennis String Set: Lot three, and I'll be quick because it's small and I want it: built 1857, George Kirk building for Jesse Shirley, both of Etruria, grinding bone and flint and Cornish stone to feed the potteries the raw stuff of English bone china. Worked till 1972. Sited here for the junction where the Trent and Mersey meets the Caldon, both waterways open since the 1770s — that's not luck, that's a valuation. And the beam engine. She's called Princess, she's steamed off a coal-fired boiler of 1903, and she is the only surviving steam-powered potter's mill of her kind still turning. No reserve. Nobody's selling her.

04
cardio tennis class Lake Ridge — the Tecnifibre Black Code 4S 18g Tennis String Set photographed at the Potteries Museum and Art Gallery in Stoke-on-Trent, United Kingdom. A view of the low modernist museum on Bethesda Street in Hanley after dark, its glazed frontage lit from inside and throwing light onto wet pavement, rain still falling lightly. A queue is shuffling in under umbrellas for a late opening, a staff member holds the door with a lanyard swinging, two teenagers photograph the Spitfire through the lit glass, and a bus pulls away behind them with its windows fogged. The string set rests on a wet handrail by the entrance steps, glowing faintly in the reflected light.
Stop four

Trentham Estate

Tecnifibre Black Code 4S 18g Tennis String Set: Lot four, seven hundred and twenty-five acres, southern fringe of the city, lake, parkland, terraces, box parterres by the mile — parkland and lake shaped in the eighteenth century, formal Italian gardens laid out in the nineteenth, one of the greatest garden estates in England, and then. Trentham Hall, pulled down, early twentieth century. Gone. The house that closed that view, off the books entirely. What's left is the gardens and the mile-long lake, which is a strange sort of lot: everything but the thing it was all pointing at. I've sold frames without pictures before. This one's still worth the money.

The Stoke-on-Trent, United Kingdom track

Tecnifibre Black Code 4S 18g Tennis String Set

Written for this world alone.

Eighteen gauge is the thin end. This is Tecnifibre's square-profile co-polyester — four flat faces, four sharp edges — pulled down to 1.20mm, and at that diameter the edges stop being a feature and start being the whole string. It cuts into the ball, hauls it into rotation, and sends it over with a shape that drops.

The trade is honest and you should know it going in: thinner poly bites harder and breaks sooner. Stoke-on-Trent, of all cities, will not flinch at that bargain. Everything this place ever made had to go into a kiln knowing full well what the kiln does.

Underneath the shape is ThermoCore, a multi-stage heating process that softens the core structure and pulls the harshness out of the impact. Tecnifibre's own comparisons put the 4S at around 20% more power than Pro Red Code, about 15% more durable than the original Black Code, and level with Razor Code for tension maintenance.

Playtesters describe the feel as firm and very direct with a muted, dampened response, and rate it high for spin and control and deliberately low for free power. That is the deal. You supply the racquet-head speed; it supplies the ceiling.

One set, 40 ft / 12.2 m, black. And here is the thing about buying one at a time in a city like this: Stoke federated six separate towns into one in 1910 and was made a city by George V in 1925, and it did that because six small things pointed the same way beat one big thing pointing nowhere. Buy the set you need, string the frame you're playing with, go and win the match in front of you.

You'll get use out of this everywhere from a windy court in Longton to the parkland courts down by Trentham, and if the ball is dropping short you have room to swing harder rather than less.

And by the way, it's also perfect for the kind of person who books a throwing-and-decorating session at Gladstone on a Saturday morning and then eats an oatcake on the walk back — Stoke's great local breakfast, and the correct fuel for anybody who has just spent two hours failing to centre a lump of clay.

Buy on Amazon

Scroll to Top