Mass added to the clubhead — furthest from the golfer’s hands — increases swing stability 4× more efficiently than mass distributed along the shaft axis. Learn More.

Wedge Weights add stability to irons and wedges.

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If lighter is faster and faster goes further, why do the best ball-strikers play the heaviest equipment? In a rotating system, mass is the stabilizing constant. Place mass where it is most efficient, and momentum becomes easier to sustain. Find the right balance of mass and speed, and strikes become heavier — delivered from tighter strike locations with more consistent start lines. This becomes even more important in wedge play — where swing speed drops and mass must do more of the stabilizing. That’s where Wedge Weights do their best work.

Swing Stability

MOI of the entire club about the swing axis — the system’s resistance to being pulled or redirected off-plane during the swing.

Speed Stability

Linear momentum (p) of the clubhead — the system’s resistance to deceleration before and through impact, A/K/A a heavy strike.

Face Stability

MOI of the clubhead about its center of mass — its resistance to twisting under asymmetric forces from turf, sand, and off-center strikes.

Efficient mass increases stability without sacrificing the swing speed that amplifies it.

Partial Swing Stability

Partial swings expose instability that full swings can hide. With lower angular momentum, small deviations in tempo or hand path create disproportionately large changes in strike stability and start line.

Adding mass at the clubhead increases system inertia, helping the swing resist redirection without slowing it down. The clubhead feels more present, motion stays on-plane, and partial swings become easier to repeat under pressure.

Wedge Play Stability

Wedge play repeatedly exposes the clubhead to asymmetric forces—from turf, sand, rough, and off-center strikes—that try to slow, twist, or redirect the head through impact.

Wedge Weights increase inertial stability directly at the clubhead axis, allowing it to maintain speed, path, and face orientation when conditions are imperfect. The result is more consistent distance control with tighter dispersion.

Partial Swing Stability

Partial swings expose instability that full swings can hide. With lower angular momentum, small deviations in tempo or hand path create disproportionately large changes in strike stability and start line.

Adding mass at the clubhead increases system inertia, helping the swing resist redirection without slowing it down. The clubhead feels more present, motion stays on-plane, and partial swings become easier to repeat under pressure.

Wedge Play Stability

Wedge play repeatedly exposes the clubhead to asymmetric forces—from turf, sand, rough, and off-center strikes—that try to slow, twist, or redirect the head through impact.

Wedge Weights increase inertial stability directly at the clubhead axis, allowing it to maintain speed, path, and face orientation when conditions are imperfect. The result is more consistent distance control with tighter dispersion.

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Adjustable Wedges and Irons

Since TaylorMade introduced the first adjustable driver in 2004, golfers have relied on OEM-designed ports, threads, and weights to adjust drivers, fairway woods, and hybrids—which Masso now brings to the aftermarket for steel wedges and irons.

Two Attachment Modes:

※ Powerful Internal Magnets for Testing
※ Peelable 3M™ VHB™ 5925 for USGA Play

TEST MODE

Internal Magnets for Adjustment and Testing

The purpose of TEST MODE is to quickly discover how 4–14 grams (2–7 swing weight points) of added head mass influences the feel and stability of the swing. Even small changes in head mass can dramatically affect how the shaft loads, how present the clubhead feels during motion, and how consistently the face is delivered squarely at impact.

Wedge Weights are designed to be adjustable—i.e., repositioned or swapped—during TEST MODE. But creating a product that is both movable and secure requires a delicate balance of material and mechanical constraints.

During testing, a powerful internal N52 magnet assembly attaches the Wedge Weight to steel wedges and irons not covered in plastic badging. The 17-4 stainless steel housing acts as both a flux shield—preventing stray attraction to other clubs in the bag—and a magnetic return path that increases pull force by 2–3× by redirecting magnetic flux back through the sidewalls into the clubhead.

PLAY MODE

3M™ VHB™ 5925 for Permanent Bonding

VHB™ (Very High Bond) closed-cell foam tapes are widely used in outdoor industrial applications to replace mechanical fasteners, rivets, and welds. VHB™ bonds with metals while simultaneously absorbing shock and vibration — allowing impact forces to be distributed across the entire adhesive interface rather than concentrated at a single point.

On high-loft wedges, the exact placement of rear weight has minimal influence on launch, spin, gapping, or CG. However, 4–8 grams of efficient mass can significantly increase inertial stability — and improve the consistency of delivering more centered strikes.

In practical terms, Wedge Wedge help the clubhead better resist being redirected, slowed, or twisted — particularly on partial swings and wedge play where angular momentum collapses.

Once the weight and location are chosen, clean the club, peel the protective layer, and press to bond the wedge weight to the clubhead for rules-conforming play. Premium 3M™ VHB™ 5925 Tape conforms to surface irregularities, absorbs energy, and distributes stress evenly for long-lasting, weather-resistant adhesion.