Tecnifibre X-One Biphase Review
As multifilament strings go, Tecnifibre’s X-One Biphase is one of the best out there on the market today. It is a string that is constructed with meticulous detail and made from high end fibres to offer you the most plush, comfortable and powerful feel possible. It’s not cheap, but you certainly get what you pay for and if you are a player that favours comfort and ultimately playability above all else, this could be your next go to string choice!
9out of 10
Power is one of the major plus points of the Tecnifibre X-One Biphase string. This is one of the most powerful strings on the market today and it is fair to say that it’s pretty much on par with a natural gut string like Babolat VS Touch in terms of out and out punch!
Actually, at times it was a little difficult to control the ball due to the additional power and I had to dial my swings back a bit and add a little more shape to my shots just to keep the ball in the court.
This is a string that you should definitely use a higher tension for in order to tame the power that its natural elasticity will generate. Luckily, the string is so soft and well damped that even at higher tensions, it remains very comfortable.
With the Tecnifibre X-One Biphase you can feel confident from anywhere on the court, safe in the knowledge that you will be able to produce powerful shots with exceptional feel.
This is definitely a confidence inspiring string that is incredibly easy on the arm and makes playing one strike tennis accessible to all types of players.
I found my shots naturally had more depth and of course more power, and the suppleness of the string meant the ball would be pocketed in the string bed for longer than I expected.
This hang time creates more of a ‘trampoline’ effect, sling-shooting the ball deep into the opponent’s court, as well as enhancing the control and feel you get from the string.
The X-One Biphase is a string that can bring even the most control oriented player’s rackets to life, opening up a larger sweet spot and adding some pop to an otherwise low powered setup. If you need to dial back the pace, this string would also pair nicely with a moderately stiff poly which would add some more control and spin.
From a power point of view though, it doesn’t get much better than this!
7out of 10
Control was an interesting thing to assess with this string. On the one hand, you get an amazing feel and touch with the Tecnifibre X-One Biphase. This makes it easy to predict where the ball is going to go and makes controlling it easy once you are dialled in.
However, given how powerful and lively the string is, many players will find this difficult to tame at first. It is a lot more potent than your typical ‘dead’ feeling poly, so the majority of club level players are used to a Babolat RPM Blast or Luxilon Alu Power.
Not to say that these strings are void of feel or responsiveness, but by comparison Tecnifibre X-One Biphase will feel like a rocket!
If you are a big hitter that likes the comfort and playability of this string, then I definitely recommend stringing it up a few pounds higher than your usual tension if using a full bed.
However, if you are looking for more power in your game, still want that exceptional feel and are ready to control the large sweet spot, then Tecnifibre X-One Biphase could be your next string of choice!
9out of 10
Touch and feel with this string is nothing short of exceptional. This is where your money goes and it is clear to see that Tecnifibre have not held back in this regard.
You get such a great sense of connection with the X-One Biphase that it is comparable to natural gut.
The string is remarkably soft and comfortable, to the point that it is actually hard to notice when you miss hit the ball! You can definitely understand why this string is so popular amongst performance players, as you can feel exactly where the ball is going at all times.
Up at the net, the X-One Biphase was particularly impressive, feeling plush but communicative. There is sometimes a danger that softer strings can lack the engagement of a firmer string, but this is not the case with the X-One Biphase.
Not only does the string bed pocket the ball nicely, but you also get a crisp response and can really feel the ball leaving the racket.
5out of 10
Spin is not one of the strongest points of Tecnifibre X-One Biphase. Most modern polyester strings are quite slippery and are coated with materials to emphasise this. The reason for this is to help them most around the string bed and produce more spin.
However, this is not the case with the grippy X-One Biphase, as it is designed from the ground up to offer power and ultimate feel.
I often found that the ball would slide off the strings than grip to them, which is something I would address by using a rough poly in future. In a full bed, you aren’t going to get much spin from this string, but if you are mainly looking for power, feel and comfort, this definitely fits the bill.
6out of 10
Like most softer strings out there Tecnifibre X-One Biphase does a great job of tension maintenance throughout its life. It is not as durable as a typical polyester string, but will last longer than a lot of synthetic gut or even natural gut strings.
The string may fray a little at the beginning of its life, but this is typical of multifilaments and is nothing to be concerned with.
9out of 10
The comfort of this string is really great. It feels incredibly soft and absorbs shocks really well. Many racket manufacturers have poured a lot of technology into their products to ensure they are as shock absorbent as possible over the last few years.
With Tecnifibre X-One Biphase, this is no longer much of an issue since the string is so plush feeling!
However, there are a few multifilaments out there that can feel so soft that they lack feel and can often be described as mushy.
This is not one of them!
You get a nice crisp response from the string, helping you to feel enough of the vibrations to know what is going on, but the X-One Biphase dials the vast majority of them out to ensure you get a silky smooth ride.
Many players that like to play multifilaments in their full string bed will opt for a bit of a higher tension, and the thinking behind this is that it offers more control and a little bit more spin.
This helps counteract the natural power of the string, but can sometimes deaden the feel. With Tecnifibre X-One Biphase, there is enough comfort and playability in the string that even at higher tensions it will still retain that crisp but plush feel.
For players that have arm issues or are returning to the game after a long lay off and need a string that is comfortable and forgiving, this could well be the ideal choice.
8.5out of 10
Overall, Tecnifibre X-One Biphase is an incredibly comfortable and powerful string that has an exceptional feel.
Whilst it is definitely not the most spin friendly or durable string out there, it does have a very plush feel thanks to the elasticity of the materials and unrivalled cushioning.
This string is best suited to players looking for a silky smooth ride and as much power as they can get, whilst not worrying too much about spin generation.
As multifilaments go, this really is one of the best you can get your hands on. It isn’t cheap, but it is worth every penny as far as I’m concerned.
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