UST Mamiya TSPX DART V 105 Stiff Iron Shafts .355 Tip

UST Mamiya TSPX DART V 105 Stiff Iron Shafts

The UST Mamiya TSPX DART V 105 Stiff Iron Shaft delivers a perfect balance of Tour-level weight and high-performance graphite design, built for players who want total control without stepping into ultra-heavy builds. At 105 grams in a Stiff flex, this model is a go-to option for aggressive golfers looking for tighter dispersion, responsive feel, and maximum consistency throughout the iron set.

Like all shafts in the DART V lineup, the 105 Stiff features UST’s Dual Action Recoil Technology — a design innovation that eliminates inconsistent flex zones and improves energy transfer. This results in more centered contact, cleaner trajectories, and reliable spin windows even on partial swings or under pressure. It’s a premium upgrade for players serious about performance.

The DART V 105 also incorporates M40X — a next-generation high tensile modulus carbon fiber by TORAY Industries. With a 30% improvement in tensile strength over standard graphite, M40X combines with proprietary nanoalloy resin systems to provide unmatched structural integrity, enhanced feel, and ultra-low torque without the harshness. This build delivers that sought-after “connected” swing feel — powerful, accurate, and tour-ready.

Best fit for: Skilled players who want a mid-weight, stiff graphite iron shaft offering enhanced shot control, lower torque, and Tour-proven dispersion without sacrificing feel.

Can’t find the option you’re looking for? Reach out — we likely carry it or can get it.

IMPORTANT Shipping Details

• Custom-built orders ship in 3–5 business days
• Even expedited shipping follows standard build timelines
• Each order is handled with precision — thank you for your patience!

Need it built?

Add all club components (shaft, head, grip, etc.) to your cart and message us during or right after checkout with your build specs — we’ll assemble your club(s) free of charge. Note: Free builds add 3–5 business days to shipping for custom work.

UST Mamiya TSPX DART V 105 Stiff Iron Shafts Spec Sheet