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KBS shaft

The KBS Max 55/50 (Srixon ZXiR HL stock) is an iron shaft in 2 flexes — it weighs 48–55 g with 5.9–6.8° torque.

Stock (made-for) version — shares the name, not the aftermarket profile.

Weight and torque, one panel eachpublished figures only
WEIGHT · GRAMS · 48g–55g55g48gRATORQUE · DEGREES · 5.9°–6.8°5.9°6.8°RA
Published weight and torque for all 2 options, on two separate scales — grams and degrees share none.

View on KBS →

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How this shaft reads against the database

Flex

2 distinct weight-and-torque points across 2 flexes are ringed. Pick one above to read its exact position.

Weight and torque against every iron shaft

Every iron shaft variant on record publishing both a weight and a torque, binned by density — the ringed marks are this shaft.

Launch and spin, as published

KBS rates this shaft high launch and high spin — the shading is how many of the 486 rated shafts on record share each square.

low launch, low spin: 64 shaftslow launch, mid spin: 0 shaftslow launch, high spin: 0 shaftsmid launch, low spin: 5 shaftsmid launch, mid spin: 258 shaftsmid launch, high spin: 2 shaftshigh launch, low spin: 0 shaftshigh launch, mid spin: 21 shaftshigh launch, high spin: 136 shaftsLOWMIDHIGHLOWMIDHIGHSPINLAUNCHKBS Max 55/50 (Srixon ZXiR HL stock): high launch, high spin (as published)
STIFFNESS BY SECTION

Neither KBS nor our derived profile has a stiffness reading for the butt, mid and tip of this shaft. Nothing here is estimated, so there is nothing to draw.

Specifications by flex

What this record publishes. Across 2 flex options: weight, torque, launch rating and spin rating on every one; no tip diameter and kick point at all.

2 rows, unsorted.

R555.90.605highhigh
A486.80.596highhigh

Stock in 1 head

What's on this page

In progress2 of 3 built

2 of 3 parts of this shaft page are built, and we're filling in the rest.

  • KBS's own specs, partly built.Taken from KBS's product page. We haven't found their full spec sheet for this shaft yet, so some figures they publish may be missing.
  • Flex options, built.2 flexes, each with a published weight.
  • Launch, spin and torque, built.Published for every flex — the figures a fitter compares shafts on.

The site is in beta and the database is still being built, so expect gaps. Know something we don't? Help us fill it in — a link to where it's published is worth more than anything else you could send.

Know something about this shaft? 1 field we don't hold — or tell us something here is wrong