The UST Mamiya ProForce V2 65 F4-S wood shaft weighs 2.33 oz (66 g) with 3° torque and is tuned for a mid launch / mid spin flight. Against nearby weight and flex options, it sits at the heavier side of its weight range and the higher-torque side. Choose this variant when stability, control and a more substantial feel matter more than easy speed.
Wood shaft specifications
UST Mamiya · ProForce V2 65 F4-S · Wood Shaft
Material: GraphiteFlex: F4-SWeight class: Midweight (65-74.9 g)Flight: Mid launch / Mid spinUse: Driver / fairway wood
2.33 ozWeight
3°Torque
F4-SFlex
midLaunch
Wood-shaft benchmarks
How this shaft compares
Numeric comparisons use wood shafts in this database.
Weight
Typical
2.33 oz
Weight is typical among wood shafts in this database.
Torque
Very low
3°
Torque is very low among wood shafts in this database.
At a glance
Shaft profile
Launchmid
StabilityVery stable / low-twist
TempoMedium to medium-fast tempos
UseDriver / fairway wood
BiasBalanced speed and control
Overview
Model information
| Manufacturer | UST Mamiya |
|---|---|
| Model | ProForce V2 65 F4-S |
| Category | Wood Shaft |
| Primary use | Driver / fairway wood |
| Catalog year | 2026 |
| SKU / code | US0139 |
| MPF rating | 4B2M |
Full specifications
Technical details
Weight & flex
Weight2.33 oz (66 g)
Weight classMidweight (65-74.9 g)
FlexF4-S
Torque3°
Bend pointmid
Kick pointMid
Tip stiffnessmedium
Build & dimensions
MaterialGraphite
Tip diameter0.335 in (8.5 mm)
Driver tip trim0 in
Flight & feel
Launchmid
Trajectory / spinMid launch / Mid spin
StabilityVery stable / low-twist
Launch assistanceNeutral launch
FeelFirm, highly stable graphite feel
Relative weightTypical among wood shafts
Relative torqueVery low among wood shafts
Player fit
Tempo fitMedium to medium-fast tempos
Transition fitModerate to firm transitions
Speed vs controlBalanced speed and control
Driver playabilityStable driver profile
Fairway-wood playabilityStrong fairway-wood crossover
Golfer fit summaryBalanced speed and control; medium to medium-fast tempos; mid launch / mid spin.
Related variants
How this version fits the lineup
Sibling comparisons use models from the same product line in this database.
Variant context
Product lineUST Mamiya ProForce V2
Position in lineupheavier side; firmest listed flex; mid launch / mid spin
Closest-version comparisonThis version sits at the heavier side of the range and on the higher-torque side. It is heavier than ProForce V2 65 F3-R and lighter than ProForce V2 65 F5-X.
Why choose this variantChoose this variant when stability, control and a more substantial feel matter more than easy speed.