Heavy Wood, Natural Power

The Petr Korbel delivers 8.0/10 speed and 7.5/10 control at 93g, making it one of the heaviest 5-ply all-wood blades in competitive use. Named after the Czech player who competed at multiple Olympics, this blade generates ball speed through mass rather than stiffness. On a firm loop, the Korbel’s weight drives through the ball with a satisfying, deep thud that distinguishes it from lighter blades.

At $69, the Korbel competes directly with the Maze Advance ($66). Both blades share identical 8.0/10 speed and 7.5/10 control ratings, but the Korbel outweighs the Maze Advance by 13g. Players who like the momentum of a heavier racket and use full-arm strokes will prefer the Korbel. Players who rely on quick wrist flicks and fast racket transitions will find 93g tiring over extended matches.

The Korbel’s popularity spans decades. It remains Butterfly’s best-selling all-wood offensive blade globally, outselling most carbon composites in regions where players value pure wood feel. In Europe and parts of Asia, club players treat the Korbel as the default intermediate upgrade from beginner blades.

Upgrade Path: Korbel to SK7 to Composites

Butterfly designed the Korbel SK7 ($99) as the direct upgrade. Adding two plies (moving from 5 to 7) increases stiffness and pushes speed to 8.5/10 while dropping control to 7.0/10. The SK7 Classic ($90) offers a similar 7-ply all-wood experience at slightly lower cost with a broader sweet spot.

Players who decide pure wood cannot provide enough speed for their developing game typically move to the Viscaria ($150-190) or Timo Boll ALC ($150-180). Both add Arylate-Carbon layers that push speed above 9.0/10. The jump from a 93g all-wood blade to a 87g carbon composite changes every aspect of ball feel, and most coaches recommend at least one intermediate step before making that transition.

Rubber Selection for the Korbel

The blade’s weight means the assembled racket (blade plus two rubber sheets) reaches 180-190g. Pairing with heavy rubbers like Tenergy 05 (cut weight ~45g per side) pushes total weight above 180g, which some players find excessive. Lighter rubbers like Butterfly Sriver FX (~38g per side) or Yasaka Mark V (~40g per side) keep the total weight manageable while complementing the Korbel’s all-wood character with classic playing characteristics.