autoFlex
autoFlex Flex One Driver Shaft
Buy direct from headquarters
- Zero risk of counterfeits. Every order ships from DUMINA Golf America, the official U.S. distributor.
- Exclusive 2-year warranty on new shafts: the standard 1 year plus an extra year, only when you buy from us.
All adapters will be installed in the Standard Setting with the shaft logo facing down at address.
Not sure which flex? Book an HQ fitting · Try the online fitting tool
Details & specs
Flex one is a single-spec shaft designed to deliver maximum power and efficiency for any golfer with clubhead speeds of up to 90 mph. We designed the shaft to load at different points depending on your club head speed. If your swing falls within the range with a relatively smooth tempo Flex One is a no brainer! Ultralight Korean-made as always!
| Flex | Weight (g) |
Recommended Swing Weight |
Driver Club Speed |
| Flex One | 39 | C5-C8 | 60-90 |
Tip - 0.335"
Raw Length - 45"
Recommended Build Length is 45" in order to control swingweight.
Shipping, returns & warranty
Free ground shipping (3–5 business days) within the contiguous U.S. UPS 2nd Day and Next Day Air, and orders to Hawaii, Alaska, Puerto Rico and other countries, ship at UPS rates shown at checkout. In-stock orders ship within 2 business days; custom builds add 2 business days.
30-day returns. Return a shaft within 30 days if it is brand new, uncut and never installed: 100% back as store credit, or 85% back to your original payment (15% restocking fee). Discounts and shipping are not refundable. Clothing can be returned or exchanged within 30 days if unworn, unwashed and with tags attached.
Fit exchange. Not the right fit? Exchange your shaft once within 30 days for a different flex of the same model.
Warranty. A 1-year warranty on all shafts, plus an exclusive extra year (2 years in total) on new shafts bought from autoFlex.us, our flagship store.
Final sale: limited editions, gift cards, certified pre-owned shafts and accessories other than clothing. International orders cannot be returned or exchanged.
- Buy directZero counterfeit risk
- Free shippingU.S. ground, 3-5 days
- 30-day returnsOne free fit exchange
- Made in KoreaKorean Hidden Technology
- 2-year warrantyExclusive to autoFlex.us