Yonex BG66 Ultimax – fast 200 m reel for power and shuttle feel
The Yonex BG66 Ultimax is a performance badminton string for players who want to combine strong repulsion, rapid shuttle acceleration and precise feedback. Its 0.65 mm gauge responds quickly at impact and supports dynamic play.
Unlike especially hard power strings, the BG66 Ultimax provides a lively and balanced response. It offers enough directness for attacking shots while retaining refined feel for drops, blocks, short serves and precise net play.
The 200-metre reel is particularly suitable for clubs, coaches, frequent players and professional stringing services. Depending on racket head size, stringing pattern, knotting technique and the amount of string used, it will generally provide approximately 20 to 22 complete badminton racket restringings.
Playing feel and characteristics
The BG66 Ultimax provides a medium-to-slightly-firm and highly responsive playing feel. The shuttle leaves the string bed quickly, supporting fast drives, attacking clears, counters and smashes.
At the same time, the string delivers clear and refined feedback. Technically skilled players can sense the impact point accurately and execute both attacking and controlled strokes with confidence.
Fast doubles players particularly benefit from its immediate response during drives, blocks and early shuttle contact. Versatile all-round players also receive an effective combination of power, control and shuttle feel.
The thin 0.65 mm gauge feels livelier than conventional durability strings. It is also more sensitive to off-centre contact, damaged grommets and heavy abrasion than models between 0.68 and 0.70 mm.
Technical specifications
| Sport |
Badminton |
| Model |
Yonex BG66 Ultimax |
| Diameter |
0.65 mm |
| Length |
200 metres |
| Colours |
Various colours available depending on selection |
| Core |
High-intensity nylon multifilament |
| Outer structure |
Special braided high-polymer nylon |
| Feel |
Medium to slightly hard |
| Power |
Very high |
| Control |
High to very high |
| Durability |
Low to medium |
| Tension stability |
Medium to high |
| Hitting sound |
Crisp and clear |
| Playing character |
Fast, lively and precise |
| Made in |
Japan |
| Stringing tension |
According to the approved limit of the badminton racket |
| Approximate yield |
Around 20 to 22 racket restringings |
| Contents |
One 200-metre reel |
Important: At 0.65 mm, the BG66 Ultimax is relatively thin. Damaged or sharp-edged grommets should be replaced before restringing. The maximum permitted stringing tension of the badminton racket must always be observed.
Who should choose the Yonex BG66 Ultimax?
The BG66 Ultimax is particularly suitable for advanced club and competitive players with sound technique. It works well for fast doubles specialists, attacking all-round players and players who take the shuttle early and actively control the pace.
Players with medium to fast swing speeds benefit from its strong repulsion and lively response. The string supports fast drives and powerful attacking strokes without feeling as hard as the BG66 Force.
The 200-metre reel is economical for clubs, coaches, frequent players and stringing services that regularly prepare several rackets with a high-quality performance string.
Beginners with frequent off-centre contact or players with especially high string wear will generally be better served by a thicker string. Those prioritising maximum durability should consider a gauge between 0.68 and 0.70 mm.
Our recommendation
We recommend the Yonex BG66 Ultimax to players and stringers looking for a fast 0.65 mm string with excellent repulsion, refined shuttle feel and strong control. It is particularly suitable for technically skilled all-round and attacking players who find the BG66 Force too firm and direct.
Unsure about the right string or tension? We will be happy to help you select a setup suited to your racket, playing level and preferred playing feel.
Why buy from racket-world.de?
Racket World is your badminton specialist retailer from Hamburg. We have more than 30 years of experience with badminton rackets, strings and professional stringing services. Our advice is personal and practical rather than a generic standard recommendation.
Orders received on working days by 11:00 a.m. are generally dispatched on the same day. We also offer a one-month return period. As a Händlerbund-certified online shop, we stand for secure shopping and reliable service.
