Until March 31, the Rackets Lab Tests service will be included without additional cost in the Strings Lab Tests subscription. From April 1, they are to be considered as two separate services so new subscribers or renewals will have a different listing price than the current one.
Yonex R-22 is a tennis racket with head size 90in² and a string pattern 16x19. The declared unstrung frame weight is 340g, the balance is equal to 310mm and the stiffness is 54 RA.