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Doubleday Golf Co.
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Project X HZRDUS Gen 4 Red CB GraphiteCurrent

2023–present · Graphite driver / fairway shaft · 47–59g · torque 3.9–6.5° · Mid launch, Mid spin

Maker specifications

Maker specifications for the Project X HZRDUS Gen 4 Red CB Graphite, flex by flex
FlexWeightTorqueLaunchSpin
40 4.047g6.5°HighHigh
50 5.051g5.9°MidMid
50 5.552g5.9°MidMid
50 6.052g4.8°MidMid
60 5.058g3.9°MidMid
60 5.558g4.4°MidMid
60 6.059g4.4°MidMid
Build
Graphite driver / fairway shaft, HZRDUS family
Profile
Mid launch, Mid spin
Sources
Published specifications and model history via fairwayjockey.com (low confidence on the launch year)

Weight by flex

Project X HZRDUS Gen 4 Red CB Graphite weight by flex: 40 4.0 47g, 50 5.0 51g, 50 5.5 52g, 50 6.0 52g, 60 5.0 58g, 60 5.5 58g, 60 6.0 59g0g20g40g60g4740 4.06.5°5150 5.05.9°5250 5.55.9°5250 6.04.8°5860 5.03.9°5860 5.54.4°5960 6.04.4°
Raw weight for each flex the maker lists, with torque underneath.

Thinking about this shaft?

Bring your club by and we’ll measure what you play now against this sheet, then build a test club so you can hit the two side by side before anything gets pulled. Numbers here are raw, uncut, as the maker publishes them.