Below is a brief explanation of what each specification and terminology means for a standard badminton racket. The information shown are not International Standards and should only be taken as a general guideline.
Specifications:
Options:
Stiffness of Shaft
Medium (Flexible)
Partial transfer of energy from wrist action. Flexible shaft stores energy at swing motion giving more repulsion of shuttlecock at impact from the racket. Good for defensive and control play style (clears, overheads, returning smashes, etc...)
Stiff (Limited Flexibility)
Reasonable transfer of energy from wrist action, good for both defensive and offensive play style
Extra Stiff (Minimum Flexibility)
Maximum transfer of energy from wrist action. Minimum shaft movement gives high accuracy on shuttlecock positioning. Ideal for offensive play style (smashing, net kill, etc...)
Some manufacturers show increasing stiffness by decreasing value. For example, SOTX and Tactic indicate stiff shaft as 8.0-8.5, and flexible shaft as 9.0-9.5.
Frame Shape
Conventional - Oval Head Shape (smaller sweet-spot)
Isometric - Square Head Shape (wider sweet-spot)
Frame Composition
Base Material
Aluminium
Hi-Modulus Graphite
Ultra Hi-Modulus Graphite
Nano Carbon / Fullerene
Mesh
Titanium Composite (Utility Titanium)
UltraTitanium
gForceTi
UltimumTi
MicroTi
ElasticTi
Shaft Composition
Base Material
Aluminium
Hi-Modulus Graphite
Ultra Hi-Modulus Graphite
Nano Carbon / Fullerene
Mesh
Titanium Composite (Utility Titanium)
UltraTitanium
UltimumTi
MicroTi
Racket Weight
2U/W2 - 90-94g
3U/W3 - 85-89g
4U/W4 - 80-84g
5U/W5 - 75-79g
Total Length (frame tip – handle end)
665mm / 26.0 inches - Standard
675mm / 26.5 inches - Long
680mm / 26.8 inches - Ultra Long
Grip Size
Grip Size is the Circumferencial Thickness of a Grip Handle (with the original leather grip on)