The Cobra Gravity Back Iron Set runs from 35.5 in (90.2 cm) for the GW to 40.25 in (102.2 cm) for the 1-iron.
Cobra Gravity Back length chart
Playing length in inches and centimetres.
| Club | Length (in) | Length (cm) |
|---|---|---|
| 1-iron | 40.25 in | 102.2 cm |
| 2-iron | 39.75 in | 101 cm |
| 3-iron | 39.25 in | 99.7 cm |
| 4-iron | 38.75 in | 98.4 cm |
| 5-iron | 38.25 in | 97.2 cm |
| 6-iron | 37.75 in | 95.9 cm |
| 7-iron | 37.25 in | 94.6 cm |
| 8-iron | 36.75 in | 93.3 cm |
| 9-iron | 36.25 in | 92.1 cm |
| PW | 35.75 in | 90.8 cm |
| GW | 35.5 in | 90.2 cm |
| SW | 35.5 in | 90.2 cm |
| LW | 35.5 in | 90.2 cm |
Measurements are shown exactly as structured in the master length field, with centimetres converted from inches.
Length progression
A quick visual of the listed length progression within this model.
Gravity Back club lengths
Bars show the relative progression within this model, not a comparison with other clubs.
What the numbers mean
Playing length is a build specification, not a universal fitting target.
How this length compares
Only genuinely comparable Cobra entries are used; women, junior and ONE Length builds are not mixed with standard men’s builds.
Near dataset median
Based on 8 other Cobra men/unisex iron set entries with the same club label and ONE-length status in this dataset.
Near dataset median
Based on 36 other Cobra men/unisex iron set entries with the same club label and ONE-length status in this dataset.
Near dataset median
Based on 115 other Cobra men/unisex iron set entries with the same club label and ONE-length status in this dataset.
Length and setup information
A cleaner build snapshot of the model details and paired spec information.
Core model details
Loft and lie setup
About this length data
Cobra Gravity Back length FAQs
What is the Gravity Back length range?
The listed lengths run from 35.5 in (90.2 cm) to 40.25 in (102.2 cm), a total spread of 4.75 in (12.06 cm). The longest listed club is 1-iron and the shortest is LW.
How long is the Gravity Back 7-iron?
The listed 7-iron playing length is 37.25 in (94.6 cm). Across this model, that sits 3 in below the longest listed club.
How does length change through the Gravity Back set?
The listed progression generally gets shorter as loft increases. The typical step between adjacent listed clubs is about 0.5 in (1.27 cm), with a full longest-to-shortest change of 4.75 in.
How do loft and length relate in the Gravity Back set?
For the matched entries in this dataset, 1-iron is 16° at 40.25 in (102.2 cm), while LW is 60° at 35.5 in (90.2 cm). That shows the actual model-specific loft/length progression rather than a generic fitting rule.
What should I match when replacing the shaft on a Gravity Back?
Match the finished playing length for the exact 1999 Gravity Back configuration shown above, not shaft raw length alone. Grip cap, adapter/hosel installation and trimming can all change the final club length.