Common questions about Dumina shafts, fitting, purchasing, and KHT technology.
Products are sold through autoflex.us, our exclusive US retailer. For authorized dealers worldwide, visit our Dealers page.
KHT (Korea Hidden Technology) is Dumina's proprietary carbon-fiber construction method. It allows us to build shafts up to 30g lighter than conventional designs while maintaining stability. Learn more →
AutoFlex uses CPM (Cycles Per Minute) ratings instead of traditional flex labels. Visit an authorized dealer for a fitting, or use the online fitting tool at autoflex.us.
All genuine Dumina shafts come with a 1-year warranty against manufacturing defects when purchased through authorized channels.
Counterfeit AutoFlex shafts are sold on unauthorized platforms. Read our complete guide to spotting fakes.
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Our team is here to help with any questions about Dumina shafts.
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