Li Ning N90 IV has just landed this week, here is some first hand test. And compare with N90 III

Weight: 88.8 vs 90g

Balance : 288 vs 305mm

Swing weight: 88 vs 91

Seems the new N90iv has become much more user friendly. Then should it generate less power? There is one small change to cover the power side, the frame head is slightly smaller than old N90iii. How much that would makeup？ need to see on the court!

Harry

MRT/ Yonex official stringer.