Rubber catapult ranking

This user has no status.
This user has no status.
Member
Dec 2025
59
29
166
Rakza7 faster than RakzaZ ?
I think that's the general consensus, isn't it? Maybe the high end of RZ is higher, but most people report rakza 7 being faster in the low and mid gears. I have never tried RZ myself (I think played R7 a couple of years back), just been doing a bit of digging on RZ, and that seems to be a consistent report among different users
 
  • Like
Reactions: golden_son
says Fair Play First
says Fair Play First
🏆 Top 1% Commenter
Well-Known Member
Jan 2012
2,193
727
3,077
TENERGY. THE END OF SUPREMACY.

Implemented tests in an engineering institution, eg rubber plant laboratory, is the only reliable way for you to know the Katapult index (=rebound resilience) on the rubber sandwich. Thumb finger tests to estimate the amount of Katapulta is all merely a subjective fib.
One man's voice is no man's voice, you must know.

Just for your curiosity -- contrary to general belief, Tenergy sponge stands far beneath from the top standings in the Katapult Rankinglist. Some china brands is known to play superior to Tenergy.
---------------------
Be erudite of everything

 
Last edited:
This user has no status.

Rakza Z, as far as I’m concerned, has a sponge with higher catapult effect than most people think!!

Is this similar to the D09C effect where if you have the ability to actually activate the sponge it has strong catapult but if you don't it feels dead? A player at my club has the Z but I haven't had a hit with it yet so curious.
 
says Fighting the EJ bug again...
says Fighting the EJ bug again...
Member
Mar 2025
340
456
2,117
Read 1 reviews

Any thoughts on different catapult strengths within the category of Euro/Japanese style rubbers?
For example, I found the XIOM Omega V Tour to have a very strong catapult - so much so that I was constantly hesitant in my shots and it was (for me) no fun to play with. By contrast, Fastarc G-1 has a much more linear feel which gives me greater confidence to really go for my shots and is (for me) much more fun to play with.

This is very interesting! While I agree that OVT has some catapult and G-1 is more linear, I don't find them that strongly different. They are two of my favorite rubbers and it's partly because I found Omega V Tour to have a much more manageable catapult than T05 or the Rasanters. (And the DYF topsheet is insanely grippy. Criminally underrepresented rubber, but I digress.)

In my experience (catapault only, which for me = nonlinear repulsion added by the rubber, not overall speed), all unboosted:

Tenergy 05
D05
Rasanter R45
Omega V Tour
Palio AK47 Red
Xiom Vega Pro H
Mantra Pro M
Rasanter R42
Big Dipper 38°
Fastarc G-1
D09c (this was a friend’s rather dead sheet, though)
Vega Korea
DHS GoldArc 8 47.5°
Rakza 7
Rakza 7 Soft
Rakza Z
DHS 8-80 37°
Yinhe Moon 12 Blue (med soft)
Vega Europe
H3 Neo provincial
Sriver EL
Yasaka Mark V
Sanwei T88-iii
Palio CJ8000
KTL Pro XT
Mercury II Soft
Mercury II Hard
H3 regular commercial
 
  • Like
Reactions: SKARIZARD
This user has no status.
This user has no status.
🏆 Top 1% Commenter
Well-Known Member
Jan 2021
3,918
2,871
8,092
Read 1 reviews
I think that's the general consensus, isn't it? Maybe the high end of RZ is higher, but most people report rakza 7 being faster in the low and mid gears. I have never tried RZ myself (I think played R7 a couple of years back), just been doing a bit of digging on RZ, and that seems to be a consistent report among different users
Yes it’s more bouncy, but when you go for it I don’t know. Z is more powerful (speed + spin) for sure…

Cheers
L-zr
 
This user has no status.
[h1]yinhe Mercury 2 9021 with MOXA[/h1]
This rubber is probably tooo cheap for most of you professional players but i thought i mention it
because i once bought a pair and could not handle it because the incoming balls were just bouncing away from me before i was able to do anything with them.
If anybody has experience with these i would be curious to find where they would fit (if at all) into the ranking list
This is probably the reason I didn't like it. It sure is tackier, and lifts the ball longer, but still I was not able to produce the topspin I expected with it. For comparison, Loki Rxton 3 green fh and Super FX 1,5 mm on bh are great.
 
says toooooo much choice!!
says toooooo much choice!!
🏆 Top 1% Commenter
Well-Known Member
Jul 2020
1,993
1,527
5,358
Read 12 reviews
Is this similar to the D09C effect where if you have the ability to actually activate the sponge it has strong catapult but if you don't it feels dead? A player at my club has the Z but I haven't had a hit with it yet so curious.
Not really, it’s just a little more bouncy than you would expect, more so after it has been played in.
D09C has a small amount of tackiness in comparison to Rakza Z, but the R Z sponge isn’t like BTY spring sponge X.
With most rubbers with harder sponges, it can be harder to activate the sponge, especially if you have been using rubbers with softer sponges and grippy top sheets.
Try putting a rubber protection sheet on a tacky top sheet, drop a ball and let it bounce until it comes to rest. it will bounce for longer than if you do the same test without the protection sheet. For me, it’s the level of tackiness that gives the initial ‘dead’ feel.
Obviously just letting a ball bounce doesn’t activate the sponge, so you have to try playing!!
Some of the older Gen Donic Bluegrip rubbers have 4 different sponge hardnesses. This really gives you the chance to compare how the sponge hardness really helps or hinders, the level of tackiness is the same. So it’s a good way to compare.
 
  • Like
Reactions: MORTtheORT
This user has no status.
This user has no status.
Member
Jan 2021
330
269
731
Catapult on low or high impact? Soft rubbers are bouncy and "catapulty" on low impact, hard rubbers gives an extra "catapulty" kick on high impact. Generally.
 
  • Like
Reactions: Federal_Agent
Top