Year: 2014
Yonex EZONE AI 108 2014 is a tennis racket with head size 108in² and a string pattern 16x18.The declared unstrung frame weight is 255g, the balance is equal to 335mm and the stiffness is 70 RA.

Yonex
Ezone
255g (8.00 oz)
108 in²
16x18
70 RA
335mm
As a oversize game improvement racquet, its construction emphasizes its intended style of play. The 108 in² head size boosts forgiveness and sweet spot size. A stiffness rating of 70 RA results in a firmer, more responsive feel at impact. With an unstrung weight of 255 g, the frame favors maneuverability. The 16x18 string pattern (open) influences spin access and launch angle. Performance-wise, it scores 100/100 for power, 80/100 for spin, and 20/100 for control, outlining its on-court behavior. It is best suited for beginner players.
Player discussions often describe the Yonex Ezone line as a 'power-with-control' frame: lively and forgiving with a modern sweet spot. Comfort feedback is mixed—many find it playable and comfortable, while some report arm/wrist/shoulder irritation, often tied to how firm the overall setup feels. Overall sentiment: great all-around performance, but comfort can vary by player and configuration.
100/100
80/100
20/100
40/100
71/100
48/100
61/100
49; 59 lbs
Multifilament
H.M. GRAPHITE
G4
26,5-28,5-24,5 mm
26.5; 28.5; 24.5
Naomi Osaka