The UST Mamiya Recoil Dart 460 ESX .370 F2-A sits at the very light end of graphite iron shafts at 2.12 oz (60 g), while its 4.6° torque is on the higher side. Its high launch / mid-high spin flight profile and responsive / higher-torque character make it friendly to smooth or moderate tempos.
Iron shaft specifications
UST Mamiya · Recoil Dart 460 ESX .370 F2-A · Iron Shaft
Material: GraphiteFlex: F2-AWeight class: Lightweight (60-79.9 g)Flight: High launch / Mid-high spinTip: Parallel tip
2.12 ozWeight
4.6°Torque
F2-AFlex
HighLaunch
Material-matched benchmarks
How this shaft compares
Numeric comparisons use graphite iron shafts in this database.
Weight
Very low
2.12 oz
Weight is very low among graphite iron shafts in this database.
Torque
Above average
4.6°
Torque is above average among graphite iron shafts with published numeric torque.
Balance point
Very low
50.5%
Balance point is very low among comparable graphite iron shafts.
At a glance
Shaft profile
MaterialGraphite
TipParallel tip
LaunchHigh
SpinMid-High
StabilityResponsive / higher-torque
Tempo fitFriendly to smooth or moderate tempos
Overview
Model information
| Manufacturer | UST Mamiya |
|---|---|
| Model | Recoil Dart 460 ESX .370 F2-A |
| Category | Iron Shaft |
| Catalog year | 2026 |
| SKU / code | US0143 |
| MPF rating | 2D3M |
Full specifications
Technical details
Weight & flex
Weight2.12 oz (60 g)
Weight classLightweight (60-79.9 g)
FlexF2-A
Torque4.6°
Bend pointlow
Kick pointLow / tip
Tip stiffnesssoft
Tip flexsoft
Butt flexmedium
Balance point50.5%
Build & dimensions
MaterialGraphite
Tip typeParallel tip
Tip diameter0.37 in (9.4 mm)
Butt diameter0.6 in (15.2 mm)
Shaft length41 in (104.1 cm)
Length rangeSingle-length blank; tip-trim by club
Parallel tip length5.5 in (14 cm)
Club rangeIrons, typically 3i-PW (trimmed from parallel blank)
FinishPainted composite / graphite finish (varies by model)
Flight & feel
LaunchHigh
SpinMid-High
Trajectory / spin profileHigh launch / Mid-high spin
Stability profileResponsive / higher-torque
Launch assistanceStrong launch assistance
Feel profileVibration-damping graphite feel, more responsive loading, light in the hands
Relative weight positionVery low for graphite iron shafts
Relative torque positionAbove average for graphite iron shafts
Player fit
Tempo fitFriendly to smooth or moderate tempos
Transition fitBest with smooth-to-moderate transitions
Control vs speed biasSpeed / ease-of-swing biased
Long-iron playabilityVery friendly in long irons; lighter weight and/or launch help
Short-iron controlBalanced short-iron feel and control
Likely swing-speed fitModerate iron swings
Target playerSlower-to-moderate swing speeds seeking easier launch and lighter overall feel
Golfer fit summarySpeed / ease-of-swing biased; friendly to smooth or moderate tempos; high launch / mid-high spin.