Retail price was recorded at collection time and may differ at checkout.
Coupang delivers inside Korea only, so we link to the brand’s own page instead. The price above is the Korean retail price.
Ultec
Moderate elasticity and spin make it easy to control, suiting beginner and intermediate players working on fundamentals. The glossy sheet also gives good durability.
About this product
At 30 degrees (German 40) this is the softest inverted rubber on the list, with figures to match: spin 10, speed 9.
What deserves attention is that it prints the Chinese and German hardness side by side. Read as 30, it cannot be compared with DHS Gold Arc 8 at 47.5; converted to 40 on the German scale, it is immediately clear that it is 7.5 degrees softer. Without the dual notation that comparison would be unavailable.
A speed of 9 means the ball is very unlikely to run long, and combined with a price of ₩42,000 the intended user is obvious: someone choosing a blade and rubber separately for the first time.
If the ball feels like it never really goes anywhere, that is expected. Beginning to notice it is itself the sign that you are ready for the next step.
What the numbers say
Inverted, 30° (40° German scale) sponge. Its spin of 6.9 ranks 12 of 23 rubbers, mid-range. The other axes sit at a similar level, so the profile is well balanced. Based on the manufacturer’s published figures.
This paragraph is not a copied review — it is generated from the figures and rankings collected on this site, and changes when they do.
Where this rubber sits among Nittaku inverted rubbers
Speed and spin figures Nittaku publishes for 14 of its inverted rubbers. Nittaku does not state a maximum, so read this as relative position within the family. Further right is faster; higher means more spin. Other brands use different scales and are not mixed in.
Manufacturer figures
Nittaku official (scale maximum not published)· bar shows position among products on the same scaleEach brand uses its own scale, so these numbers cannot be compared directly across brands
Full specifications
| Surface type | Inverted |
| Tackiness | Non-tacky |
| Sponge hardness | 30° (40° German scale) |
| Thickness options | Thick (1.7-1.9mm) / Medium (1.4-1.7mm) |
| Colours | Red / Black |
| Made in | Japan |
Blades that pair with this rubber
Real player setups and level-based recommendations come first.
Innerforce Layer ALC
5-ply + 2 ALC plies
(1)Matched at a similar mid-range grade
Harimoto's ultra-aggressive two-winged play at the tableTomokazu Harimoto Innerforce ALC
5-ply + 2 Arylate-Carbon plies
Matched at a similar mid-range grade
Falcima
5-ply
Matched at a similar mid-range grade
Top ONE premium-grade woodHurricane King Q968
5-ply + 2 Arylate-Carbon plies (Top ONE grade wood)
Matched at a similar mid-range grade