The Mitsubishi Chemical Diamana RB Series 63 X-Stiff wood shaft weighs 2.19 oz (62 g) with 3.2° torque and is tuned for a mid-high launch / mid spin flight. Looking at the surrounding models, it sits at the heaviest end of its weight range and the lower-torque side. Choose this variant when stability, control and a more substantial feel matter more than easy speed.
Wood shaft specifications
Mitsubishi Chemical · Diamana RB Series 63 X-Stiff · Wood Shaft
Material: GraphiteFlex: X-StiffWeight class: Mid-light (55-64.9 g)Flight: Mid-high launch / Mid spinUse: Driver / fairway wood
2.19 ozWeight
3.2°Torque
X-StiffFlex
mid/highLaunch
Wood-shaft benchmarks
How this shaft compares
Numeric comparisons use wood shafts in this database.
Weight
Typical
2.19 oz
Weight is typical among wood shafts in this database.
Torque
Below average
3.2°
Torque is below average among wood shafts in this database.
At a glance
Shaft profile
Launchmid/high
StabilityStable / control-oriented
TempoMedium-fast to fast tempos
UseDriver / fairway wood
BiasSlightly speed biased
Overview
Model information
| Manufacturer | Mitsubishi Chemical |
|---|---|
| Model | Diamana RB Series 63 X-Stiff |
| Category | Wood Shaft |
| Primary use | Driver / fairway wood |
| Catalog year | 2026 |
| SKU / code | MR0118 |
| MPF rating | 5B2M |
Full specifications
Technical details
Weight & flex
Weight2.19 oz (62 g)
Weight classMid-light (55-64.9 g)
FlexX-Stiff
Torque3.2°
Bend pointmid
Kick pointMid
Tip stiffnessmedium
Build & dimensions
MaterialGraphite
Tip diameter0.335 in (8.5 mm)
Driver tip trim0 in
Flight & feel
Launchmid/high
Trajectory / spinMid-high launch / Mid spin
StabilityStable / control-oriented
Launch assistanceModerate launch assistance
FeelStable graphite feel with controlled loading
Relative weightTypical among wood shafts
Relative torqueBelow average among wood shafts
Player fit
Tempo fitMedium-fast to fast tempos
Transition fitFirm to aggressive transitions
Speed vs controlSlightly speed biased
Driver playabilityStable driver profile
Fairway-wood playabilityStrong fairway-wood crossover
Golfer fit summarySlightly speed biased; medium-fast to fast tempos; mid-high 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 lineMitsubishi Diamana RB
Position in lineupheaviest end; firmest listed flex; mid-high launch / mid spin
Closest-version comparisonThis version sits at the heaviest end of the range and on the lower-torque side. It is heavier than Diamana RB Series 63 Stiff.
Why choose this variantChoose this variant when stability, control and a more substantial feel matter more than easy speed.