Tecnifibre X-One Biphase 16 / 1.30

What it is

You take a mid-pace ball early and the bed pockets—soft, then a clean leave with depth you didn’t muscle. That’s classic Tecnifibre X-One Biphase: the long-running premium multifilament shops reach for when someone wants gut-like comfort without natural-gut money.

US retail naming (Sep 2026): Tennis Warehouse titles the volume set Tecnifibre X-One Biphase 16/1.30 String (Natural, Red, Black). Tecnifibre official lists gauges by diameter (1.18 / 1.24 / 1.30 / 1.34 mm). Same product either way—16 gauge / 1.30 mm, 40 ft / 12.2 m set (~12 m garniture on Tecnifibre EU). Composition per TW / Tecnifibre: multifilament—50% Elastyl® + 50% H²C fibers (1,400+ filaments) impregnated with PU 400 polyurethane, finished with Tecnifibre’s Biphase pre-stretch (visible notching on the string) and an SPL surface agent. Made in France (Wervicq-Sud). TW playtest Power 90 / Comfort 86 / Control 72 / Spin 66 / Overall 82. US street for a set: $22.95 (TW Natural / Red / Black, Sep 2026). Reel if you string a lot: 660′ / 200 m ~$334.95 on TW for 16/1.30 Natural.

Not NRG2, X-One HD, or cheaper Tecnifibre multis—this listing is classic X-One Biphase, focused on the 16 / 1.30 set most club players buy (17 / 1.24 is the livelier thinner option).

Who it’s for

Serious recreational and club players who want a soft full bed—roughly 3.5–4.5 with slow-to-moderate swings, flat-to-mild topspin hitters who need free depth, doubles players who live on touch and blocks, and anyone nursing elbow/shoulder after poly. Strong fit if you want gut-adjacent pocketing without VS money, or a comfort cross / hybrid softener with a poly main.

Skip it if you already swing huge with heavy brush and hate restringing—TW reviews and customer feedback keep hammering fray and short life under spin. Also skip if you need shaped-poly bite (that’s Hyper-G / RPM Blast on Court List) or firm round control (ALU Power). Budget soft-string seekers may prefer cheaper synth-gut or sale MLT; X-One sells playability and crisp soft power, not bargain hours.

Standout details

• Specs that matter: 16 / 1.30 mm (also 17 / 1.24; official also 1.18 / 1.34) · 40 ft / 12.2 m set · PU 400 + Elastyl/H²C multifilament · Biphase pre-stretch · Natural / Red / Black · Tecnifibre rec. tension ~22–25 kg (max 32 kg)
• Comfort is the franchise: TW playtest Comfort 86—cushioned, shock-absorbing, crisp rather than mushy; the reason stringers still pull it for arm-friendly builds
• Easy depth, not laser control: TW Power 90 / Control 72—among the liveliest multis; big flat hitters often sail until they raise tension or hybrid with poly
• Spin is stroke, not shape: TW Spin 66—lowest of the soft-multi conversation vs NXT’s TW Spin 74; no octagon snapback story
• Playability window: TW Playability Duration 78 / Durability 73—holds feel better than some mushy multis when fresh; hard brushers still fray and pop it early
• Pricing ladder: Set $22.95; 660′ reel ~$335—same premium-multi shelf as NXT; value only improves if you string yourself and don’t chew beds
• Tradeoffs: Premium set price; power can spray control; spin is modest; frays under heavy topspin; not a control or spin specialist

Who’s hitting it

Club reality, not tour mythology. X-One Biphase is a staple comfort multi on US recreational sticks—arm-rehab beds, senior leagues, and soft hybrids where a poly main needs a forgiving cross. Tecnifibre built its brand on French-made PU-impregnated multifilaments; shops still treat X-One as the “gut-like soft” answer next to Wilson NXT and Babolat Xcel.

Tour often hybrids. Pros who want soft feel usually run natural gut or gut/poly (or multi crosses with a firm main)—not a retail full bed of X-One 16 at your club tension. Older TW playtest and player chatter still note past Tecnifibre / X-One hybrid use in the soft-string era; treat any athlete association as brand-level history, not “this exact 40 ft Natural set is their match string.”

Retail ≠ tour setup. Pros cut out beds constantly and customize gauges/hybrids. Why club players still care: if you want the soft-string lane’s classic Tecnifibre answer—cushion, pop, gut-adjacent pocketing with a slightly crisper leave than mushy multis—this is the SKU most shops already know how to tension.

Honest verdict

If Court List already covers Wilson NXT in the soft-multi lane, X-One Biphase is the Tecnifibre soft-multi alt: a touch more lively and crisp in TW’s framing, still plush, still not firm, still not spin-shaped. String it for feel (many clubs sit mid-50s; raise a few pounds if balls sail), take clean cuts, and plan to restring when fray and dullness show—especially if you brush hard. For serious recreational players who want the soft-string conversation’s other classic French answer as a primary comfort bed, it’s the French answer worth putting on the soft-string demo list next to NXT.

Updated 2026-09-17