Drivers get all the attention when it comes to custom fitting. Pairing the right driver head with the right shaft can bring a golfer as much as 10, 20, even 30 more yards off the tee.

But despite what many golfers believe, longer drives aren’t the key to lower scores. Tour players love to hit their drives long and straight, but they’ll trade an iron shot that finishes close to the pin for a long drive every time. For that reason, it is just as important for golfers to have a properly fit set of irons as it is for them to have a properly fit driver.

Think of it this way — if a golfer chooses the wrong driver shaft, he or she has messed up one club. If a golfer chooses the wrong iron shaft, however, he or she has messed up as many as eight clubs.

That’s why KBS spent the last 12 months compiling feedback from 75,000 golfers for its revamped online fitting software on the company’s website. Developed with proprietary software from the company’s R&D department, the KBS Fit System offers one of the most comprehensive online shaft fitting systems for golfers.

The new design and updated software asks golfers to answer seven questions and at the end provides them with recommendations for a hybrid shaft, iron shaft and wedge shaft. The results page also includes information about local KBS dealers that can further dial in the fitting and order the shafts for the customer (a golfer’s name, email address and zip code is required to go through the process).

You can see my online shaft fitting results above.

Click here for more discussion in the Tour/Pre-release equipment” forum. 

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Zak is the Editor-in-Chief of He's been a part of the company since 2011, when he was hired to lead GolfWRX's Editorial Department. Zak developed GolfWRX's Featured Writer Program, which supports aspiring writers and golf industry professionals.

He played college golf at the University of Richmond (Go Spiders!) and still likes to compete in tournaments. You can follow Zak on Twitter @ZakKoz, where he's happy to discuss his game and all the cool stuff that's part of his job.


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  1. I couldn’t find KBS trim codes on their revamped website, but found them by googling KBS and trim charts. KBS makes excellent shafts, but folks who build their own clubs should be aware that component catalogs sometimes list just one set of trim options for these shafts, though KBS itself has several. The parallel tip “Tour” shaft can range from 4.0 to 5.5, depending on how much one trims. Likewise, the S flex can range from 5.0 to 6.5. Each extra inch of tip trim equals half a flex (.5). Thus, there is overlap. If one follows some component catalog charts, they will only get the softest flex in that range.
    If one is pretty familiar with one’s swing needs, one can dial in the specific cpm that they want, as I think each 3/16″ of extra tip trim equals .1 increase in flex.
    If one orders the S flex and simply follows the trim codes from some component suppliers, they will wind up with a 5.0 shaft, even if they might have expected a 5.5 or 6.0 or higher. Just giving folks a heads up that those ranges exist, and you can get exactly the flex you want if you read the trim charts from KBS itself rather than some of the component companies.
    If your online fitting says you play an S flex Tour shaft, you still need to know that the S flex ranges from 5.0 to 6.5, a full flex and a half range difference depending on tip trimming.
    Also, the 90 gram weight plays considerably softer than the Tour wgt, to the extent that if you play an R+ in the Tour model, you likely will be told by the new fitting model that you’d be an S+ in the 90 gram model.