The KBS PGI Graphite 80 .370 Stiff is heavier than average for graphite iron shafts at 2.82 oz (80 g), with 3.5° torque sitting near the middle of the group. Its mid-high launch / mid spin flight profile and stable / control-oriented character make it best suited to medium or medium-fast tempos.
Iron shaft specifications
KBS · PGI Graphite 80 .370 Stiff · Iron Shaft
Material: GraphiteFlex: StiffWeight class: Mid-light (80-99.9 g)Flight: Mid-high launch / Mid spinTip: Parallel tip
2.82 ozWeight
3.5°Torque
StiffFlex
Mid-HighLaunch
Material-matched benchmarks
How this shaft compares
Numeric comparisons use graphite iron shafts in this database.
Weight
Above average
2.82 oz
Weight is above average among graphite iron shafts in this database.
Torque
Typical
3.5°
Torque is typical 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
LaunchMid-High
SpinMid
StabilityStable / control-oriented
Tempo fitBest suited to medium or medium-fast tempos
Overview
Model information
| Manufacturer | KBS |
|---|---|
| Model | PGI Graphite 80 .370 Stiff |
| Category | Iron Shaft |
| Catalog year | 2026 |
| SKU / code | FS0078 |
| MPF rating | 4B1M |
Full specifications
Technical details
Weight & flex
Weight2.82 oz (80 g)
Weight classMid-light (80-99.9 g)
FlexStiff
Torque3.5°
Bend pointmid/high
Kick pointHigh
Tip stiffnessmed/firm
Tip flexfirm
Butt flexmedium-firm
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
LaunchMid-High
SpinMid
Trajectory / spin profileMid-high launch / Mid spin
Stability profileStable / control-oriented
Launch assistanceModerate launch assistance
Feel profileVibration-damping graphite feel, stable through impact
Relative weight positionTypical for graphite iron shafts
Relative torque positionTypical for graphite iron shafts
Player fit
Tempo fitBest suited to medium or medium-fast tempos
Transition fitSuited to moderate-to-firm transitions
Control vs speed biasSpeed / ease-of-swing biased
Long-iron playabilityGood long-iron playability
Short-iron controlBalanced short-iron feel and control
Likely swing-speed fitModerate-fast to fast iron swings
Target playerModerate swing speeds seeking lighter weight with balanced launch and control
Golfer fit summarySpeed / ease-of-swing biased; best suited to medium or medium-fast tempos; mid-high launch / mid spin.