Nippon Zelos7 Golf Shaft Review

Iron Golf Shafts – NIPPON N.S.PRO Zelos7

By Russ Ryden, A Golf Digest America’s 100 Best Clubfitter
Fit2Score, Dallas Fort Worth, Texas


The Nippon Zelos 7 is now available in the US. Quality carbon fiber shafts dominate the lightweight iron shaft market. The NSPro 750 was the lightest steel shaft available from Nippon. The very thin walls of the butt of the shaft had to be reinforced with a woven graphite fabric. The Zelos7 is about 5 grams lighter than the 750. The graphite butt wrap is gone. Nippon is one of the largest manufacturers of automotive valve springs. They are using their metallurgical expertise in the design of golf shafts. The Modus3 shafts are one of my favorite steel iron shafts. The deliver great feel and exceptional dispersion control. The Zelos7 has quickly become a top seller in the Asian market. Using new alloys, Nippon design a 72 gram steel shaft that is stable. It is targeted at the slow smooth golf swing that is best fit into a light weight club.

The technical discussion, measurements and testing results are available only to registered readers

I glued the review samples into some 6 iron heads and took them to the range. I was expecting a great deal of whippy dispersion from a shaft that had 4 pounds less stiffness than my current gamer. That was not the case. The S flex version was surprisingly stable and easy to control. The ball flight was higher, but that is to be expected with a shaft that is significantly softer than your ideal fit. I had no trouble controlling the Zelos7 and moved the samples immediately to my fitting system. If you are looking for a light weight iron shaft, you should be testing the Nippon Zelos7.

  • DerGolfmeister

    What are the swing speed recommendations for R- and S-Flex of this shaft model?


    • Shaft loading is more that speed so it is hard to say. I have not personally tested the Zelos 7 but I did test the Zelos 8 S when it came out. My 6i speed is in the mid to high 80’s. I had no trouble controlling it. I had expected snap hooks and I got a nice easy draw. The 7 is lighter still. I would not be considering it much above 85 with a 6 iron. It is more important to consider ones relationship with how weight affect timing than being concerned with speed and stiffness.