The U.S. Kids Golf UL51 WT20-S 6 Iron is the latest DV3* series iron engineered specifically for junior golfers with a height of 130–137 cm (approximately 51–54 inches), typically around 8 years of age. Ultralight irons are purpose-built to deliver maximum forgiveness and ease of playability, helping young players get the ball airborne with confidence and develop their speed and power. This left-hand model features a K-Flex graphite shaft and is available in the WT20-S configuration — club heads that are 20% lighter than standard adult irons — making it ideal for beginner to intermediate junior players.
During the development of the DV3* iron line, TrackMan technology was used to optimise the Centre of Gravity (COG), moving it rearward and downward for a higher launch angle and greater tolerance on off-centre strikes. A thinner face increases the Coefficient of Restitution (COR), improving energy transfer at impact for more ball speed. The updated design simplifies the game so young players can focus on developing their swing rather than compensating for ill-fitted equipment.
The WT20-S designation means the club heads in this range weigh 20% less than a comparable adult iron. For a junior golfer whose swing speed is still developing, this weight reduction is transformative: it allows the player to accelerate the club through the hitting zone naturally, without forcing the swing. The result is more consistent contact, better ball speed, and improved distance — all without placing unnecessary strain on growing muscles and joints. The DV3* construction also maintains structural integrity and feel despite the reduced mass, so junior players are not sacrificing feedback at impact.
U.S. Kids Golf used TrackMan launch-monitor data during the design of the DV3* iron series to precisely locate and lower the Centre of Gravity (COG) within the clubhead. By moving the COG rearward and downward, the iron promotes a higher, more penetrating ball flight that is ideally suited to junior swing speeds. This COG placement also increases the Moment of Inertia (MOI), meaning off-centre strikes — which are common at this stage of development — are better absorbed and result in less distance and accuracy loss. It is a measurable improvement that shows up immediately on the course.
The face of the UL51 6 Iron has been thinned to increase its Coefficient of Restitution (COR) — a measure of how efficiently energy is transferred from the club to the ball at impact. A higher COR means the face flexes more at contact and springs back, imparting greater ball speed even when the swing speed is relatively modest. For junior golfers, this engineering detail is particularly valuable: it compensates for lower clubhead speeds and delivers the distance normally associated with a faster swing. The practical outcome is a junior who can reach greens in regulation, building confidence and enjoyment of the game.
The K-Flex graphite shaft is purpose-designed for the swing characteristics of junior golfers in the 130–137 cm height range. Its ultra-flexible profile and low kick-point mean the shaft loads and unloads early in the downswing, flicking the clubface upward through impact and promoting an easy, high-launching ball flight. Graphite construction keeps the overall club weight to a minimum, further reducing the effort required to swing. The shaft's frequency is matched to the club head weight and length, ensuring a balanced, consistent feel throughout the set that builds a reliable swing foundation.
Two key design elements work together to make the UL51 6 Iron exceptionally forgiving for juniors still learning the game. The wider sole prevents the leading edge from digging into the turf on fat shots, sliding cleanly through the ground and delivering a useable strike even on imperfect contact. The slight offset — where the clubface sits fractionally behind the hosel — gives players a small but meaningful amount of extra time to square the face through impact, reducing the frequency of pushes and slices. Together, these features allow young players to focus on swing development rather than correcting persistent ball-flight errors.
Unlike adult clubs cut down to a shorter length, every U.S. Kids Golf iron is engineered from the ground up for a specific player height range. The UL51 series targets juniors standing 51–54 inches (130–137 cm) tall, and every parameter — shaft length at 79 cm (31 in.), lie angle at 59.5°, grip size, flex profile, and club head weight — has been calibrated for that exact player profile. This means the junior stands correctly at address, swings on the right plane, and develops proper technique from the very first round. Equipment that genuinely fits is the single most important factor in junior development, and U.S. Kids Golf has built an entire system around that principle.
| Specification | Value |
|---|---|
| Club | 6 Iron |
| Loft | 33° |
| Lie Angle | 59.5° |
| Club Length | 79 cm (31 in.) |
| Club Head Weight | 202 g |
| Model / Series | WT20-S (20% lighter club heads) |
| Shaft Material | Graphite |
| Shaft Flex | K-Flex |
| Kick-Point | Low |
| Hand | Left |
| Optimal Player Height | 130–137 cm (51–54 in.) |
| Recommended Age | Approx. 8 years |
| Grip | Size 51 velvet rubber grip |
| Category | Beginner to Intermediate |
In stock 1 pcs
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