UST Mamiya Quantum Speed TSPX Iron Shaft Model/Flex:55 F3 R explosive launch with a solid

explosive launch with a solid feel and sound

optimized weight distribution

Perfect for juniors

With its advanced ZipCore design and aggressive face milling

UST Mamiya Quantum Speed TSPX Iron Shaft Model/Flex:55 F3 R explosive launch with a solidThe UST Mamiya Quantum Speed TSPX Iron Shaft delivers ultra lightweight precision for golfers seeking distance, control, and consistency. Built with high modulus carbon fibers and reinforced resin systems, it optimizes clubhead speed and energy transfer while maintaining accuracy and smooth feel. Its lightweight construction reduces swing fatigue, promoting consistent ball striking and tighter dispersion throughout the set. Designed with optimized