The Tecnifibre Black Code is pentagonal polyester string designed to have better elasticity, which delivers more pop, a bigger sweet spot and less shock at impact.

The string also has a pentagonal shape for increased spin and feel.

Tennis Warehouse Australia Review
“Cracked the code”
Our play tester Shaun Hardwick tested Technifibre Black Code 1.24mm strung at 57lbs in a Head Microgel Prestige MP. Here is his review:

I’d been eagerly awaiting this string’s release after reading the buzz. During stringing it was obvious that this would be a nice comfortable string, it was quite soft and didn’t have that wirey property about it.

Black Code didn’t disappoint from the baseline, good access to spin, good power and really comfortable for a poly. Spin potential was slightly less than Pro Hurricane Tour, but its feel and forgiveness was better than most co-polyester strings.

I was getting a lot more response at the net, it’s well known that polys are terrible in regards to feel for volleys but this wasn’t too bad. Obviously no comparison to a multifilament, but more responsive than any other poly I’ve tried. Similar to Poly Plasma but more crisp.

On serve the power of the string was evident, first serve had a little more juice on it than normal with Pro Hurr Tour at the same tension. However I did lose a bit of kick on the second, the pentagonal profile is very subtle and is really only noticeable if you shine light off the strings.

Overall I was extremely impressed with the Black Code, so much so that it is now my string of choice for comp. It just feels fantastic everywhere in the court, I have more confidence at the net and find enough spin where needed. Good job Tecnifibre! I previously tried Red Code, however Black Code seems to do everything better and feels really good at the same time.