Yonex BG66 Ultimax High-Speed Badminton String

Maximum Repulsion Power and Precision Control for Elite Players

Take your game to the absolute limit with the Yonex BG66 Ultimax, one of the most widely used and celebrated strings on the professional global circuit. Designed precisely for advanced competitors and intermediate club players demanding lightning-fast shuttle speed, this premium string delivers an unparalleled blend of explosive repulsion and pinpoint accuracy.

Engineered with an ultra-thin 0.65mm gauge, the BG66 Ultimax minimizes air resistance during high-velocity swings, allowing the string bed to snap back instantly upon contact. This high-intensity deflection translates your swing speed into effortless baseline-to-baseline clears and blistering rear-court smashes, all while generating a sharp, satisfying acoustic boom that dominates the venue.

If you are a high-performance player looking for maximum speed, immaculate touch for net drops, and an incredibly crisp, medium hitting feel, the Yonex BG66 Ultimax is the ultimate choice for your racquet.

Key Technology & Performance Features

• Ultra-Thin 0.65mm Gauge: The razor-thin design maximizes contact responsiveness and produces ultimate repulsion power, forcing your opponents into faster defensive positioning.

• High-Intensity Nylon Multifilament Core: Features a specialized high-density core fabric that delivers superior elasticity and structural memory, retaining your desired tension longer than standard thin gauges.

• Special Braided High Polymer Nylon Outer Wrap: The exterior layer provides a textured grip on the shuttlecock’s skirt, translating subtle wrist movements into precise, deceptive net drops and slices.

• Medium Hitting Sensation: Perfectly balances shock absorption with a solid impact feel, ensuring a highly comfortable response that reduces strain on the forearm during heavy play.

• The Choice of Champions: Trusted globally by elite touring professionals for its world-class balance of speed, acoustic presence, and responsive touch.

Performance Ratings (Yonex Scale: 1 - 10)

• Repulsion Power: 10 / 10

• Control: 10 / 10

• Hitting Sound: 10 / 10

• Shock Absorption: 8 / 10

• Durability: 6 / 10

Technical Specifications

Stringer's Tip: To optimize the life and responsiveness of the ultra-thin 0.65mm gauge, intermediate players achieve excellent results stringing between 24-26 lbs. Advanced competitors who want extreme precision use it confidently up to 28 lbs. Avoid over-tightening during off-center cold weather play.