Tecnifibre RPX

Tecnifibre RPX Review and Play Test

String: Tecnifibre RPX  (16 1.30 mm)
Construction: Multifilament (50% firm polyester & 50% soft nylon polyamide filaments with a 3SPL Silicium Pyrogene Lubritec anti-abrasion coating)
Racket Used: Babolat Aeropro Drive 2013
Cost: $12

RPX – What You Need to Know

Tecnifibre RPX is pretty Meh to me. It promises this great fusion of multi and poly but what you actually get is just a slightly firmer feeling multifilament. For me it wasn’t any more durable than NRG and wasn’t as arm friendly either.

There’s a reason for hybrid stringing versus trying to put it all in one string and this string is the example of why you sometimes shouldn’t attempt to develop something just because you can. It doesn’t know what it wants to be and while it plays fine there’s nothing to really praise or criticize. At $12 it’s not a bad deal but you could definitely come up with some hybrid setups at that price point that are superior in every category. The string broke on me in about 6 hours despite the promise of increased durability. Players wanting a firmer response off the string bed out of their multifilament’s might like this string but I can’t imagine there are too many people in that camp. For me NRG pretty much out performs this string in every category except for the price… but trust me the extra $8 is worth it. Personally, I think Tecnifibre RPX has done a good job with marketing but hasn’t done a great job delivering on those promises in action.

RPX – What I Loved

With this string I didn’t love anything except that it didn’t move around in the string bed too much.

RPX – What I Hated

The whole multi-poly fusion marketing is what I hate the most. This is really just a decent multifilament string that’s a little stiffer. I found I actually had more control and roughly the same amount of spin potential with NRG which is just a straight up multifilament so Tecnifibre RPX definitely falls in the over promise under deliver category for me.


It broke so fast for me I can’t say it’s a good value. However, if you’re not a string breaker paying $10 for a pretty good multifilament isn’t a bad deal especially if you wait for one of many Tecnifibre string sales throughout the year. There is a 15L version of this string available and that could likely prolong the string life a little as well.

Who this string IS for

Budget hunters looking for a firm multifilament. It performs like most multifilament’s so for $12 if you’re not a string breaker it might be worth trying.

Who this string is NOT for

Anyone who needs a durable string should stay away. If you have big strokes and hit with moderate to high levels of topspin you will shred through this string really fast.

Final Verdict

If you haven’t already go back to the top of this review and read the string construction. It’s absurd and would make you think this string is engineered with space age polymers and coated with a secret formula. And you know what maybe it is, but Tecnifibre RPX is so complicated in it’s design that I think function, the most important factor, was an afterthought. Not a terrible alternative to NRG if you are looking for a budget option but otherwise it’s just another multifilament string that’s a little firmer than average. Doesn’t really remind me of a polyester string in anyway despite the supposed “fusion” technology.