SK Fiber Hypersonic SL50 front view, ultra-light shaft for irons control.
SK Fiber Hypersonic SL50 tip diameter detail, precision 0.370 inch for stable iron play.
SK Fiber Hypersonic SL50 weight and torque spec, lightweight feel with mid-high launch.

SK Fiber

SK Fiber Hypersonic SL50 Ultra Lightweight .370\" Graphite Golf Club Shafts for Irons, Regular/Stiff Combination Flex for Men

High-performance golf made for confident daily results

$49.51

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Why customers choose Golfavero

Overview

Discover the SK Fiber Hypersonic SL50, a precision-engineered graphite shaft designed to bring a featherweight feel to iron play. Weighing in at 58 grams, it pairs a 0.370 inch tip with a 5.9 inch parallel tip section and a 0.600 inch butt diameter to deliver a streamlined profile for focused tempo and smoother swings. Available in regular and stiff combination flex for men, the SL50 offers options for players seeking a balanced balance between smoother energy transfer and firmness in response.

This shaft is sold as a raw, uncut piece and does not include a golf shaft adapter or grip. It represents a practical replacement option for irons and is a smart add-on for repair shops stocking authentic graphite shaft components.

Specifications at a glance

  • Shaft Tip Diameter: 0.370 inch
  • Parallel Tip Length: 5.9 inches
  • Butt Diameter: 0.600 inch
  • Shaft Length: 41 inches
  • Shaft Torque: 4.4 degrees
  • Shaft Weight: 58 grams
  • Ball Flight: Mid-High launch
  • Warranty: One-year manufacturer’s warranty
  • Note: Raw, uncut shaft; no adapter or grip included

What you might notice on the course

The ultra-lightweight design can contribute to a more effortless takeaway and a cleaner through-swing, especially for players seeking tempo control. The mid-high launch profile supports a higher trajectory without magnifying swing effort, which may help with consistency over multiple holes or rounds. While results vary by swing, strength, and club setup, the SL50 is positioned as a capable option for those prioritizing light feel and dependable feedback during impact.

Who this shaft is for

Ideal for players who want a very light shaft replacement for irons or who maintain a flexible swing tempo. It suits golfers who prefer a mid-high launch with a responsive, lightweight feel. Retailers and repair shops can stock this raw shaft as a ready-to-cut, ready-to-build option for iron sets that require a precise 0.370 inch tip.

FAQ

Q: What irons are compatible with SK Fiber Hypersonic SL50 shafts?

A: These 0.370 inch tip shafts fit many standard iron sets; verify compatibility with your clubhead and grip specs before installation.

Q: What flex options are available for this shaft?

A: Regular and stiff combination flex for men, offering a balanced feel and mid-high launch.

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