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The vast undercut cavity allows weight to be moved away from the face and into the sole for a higher MOI and high Characteristic Time rating (CT) with faster ball speeds. The MOI was increased by 10% for significantly improved forgiveness and dispersion
This undercut cavity also provides a higher launch angle and enhanced forgiveness.
A 15% wider sole lowers the CG and offers superior bounce and increases launch for cleaner, high-flying shots. The wider sole design leads to cleaner turf interaction for more consistent shot making
A Chamfered Face around the topline and leading edge of the iron allowed for an increase in face height and topline thickness without affecting the traditional shape of the C521 Irons.
The beveled design element helps the iron pack more ball speed, overall forgiveness and confidence while still maintaining a profile that fits the Competition Spec billing.
Advanced toe weighting technology in the C521 Iron maximizes stability on impact and provides better offcenter hit distance from the face of the iron. The strategically placed toe weight elongates the sweet spot and creates a pure feel off the face of the irons.
The lower and deeper CG allowed the C521 irons to be power-lofted for added distance and lower spin with the same launch characteristics as a standard lofted iron. This makes for a modern long-distance iron design that will provide extra distance and straighter shots with the same apex height expected from each iron.
The mid-high launch, mid-spin shaft Aldila Rogue shaft was chosen for the Hot Launch C Series after extreme testing with Tour Edge’s one-of-a-kind swing robot T.E.D. (Tour Edge Development).
Aldila Rogue shafts are high-end performers that have won numerous times on professional tours around thew world. They are known for an even release for players that like a smooth, active feel and consistency by using advanced, high-modulus Graphitic Carbon Fibers.
It is also available in a KBS MAX 80 steel shaft. The KBS MAX 80 is a lightweight low-kick point steel shaft that produces a high trajectory for longer distance shots
| Model | Loft | Lie Angle | Mens Standard Length | Ladies Standard Length |
| 4 Iron | 22° | 61° | 38.75" | 37.75" |
| 5 Iron | 25° | 61.5° | 38.25" | 37.25" |
| 6 Iron | 28° | 62° | 37.75" | 36.75" |
| 7 Iron | 31° | 62.5° | 37.25" | 36.25" |
| 8 Iron | 35° | 63° | 36.75" | 35.75" |
| 9 Iron | 40° | 63.5° | 36.25" | 35.25" |
| PW | 44° | 64° | 35.75" | 34.75" |
| AW | 49° | 64° | 35.75" | 34.75" |
| SW | 54° | 64° | 35.75" | 34.75" |
| LW | 59° | 64° | 35.75" | 34.75" |
| Model Graphite | Flex | Weight | Launch | Torque |
| Aldila Rogue | Ladies | 55 grams | Mid | 5.0° |
| Aldila Rogue | A-Senior | 55 grams | Mid | 4.5° |
| Aldila Rogue | Regular | 65 grams | Mid | 4.0° |
| Aldila Rogue | Stiff | 65 grams | Mid | 4.0° |
| Aldila Rogue | X-Stiff | 65 grams | Mid | 3.5° |
| Model Steel | Flex | Weight | Launch | Torque |
| KBS Max 80 | Regular | 102grams | Mid/High | 3.0° |
| KBS Max 80 | Stiff | 102grams | Mid/High | 3.0° |
Lamkin Z5
