as what is stated, i've been seeing rackets that have the letters "CH" and "SP" imprinted onto the shaft? what do these mean,? and are they basiaclly the same as the rackets w/o "the abbreviations?" are there other letters?!?
SP = singapore CH = china JP = japan TW = taiwan CD = canada US = ... FR = french GR = german so on... i think old models doesn't have a area code on them as for the official answer from yonex it should be: "all rackets are made in japan, distribution codes are for convinence as well as registriction in the distributed areas to receive warranty" rumors about quality of the rackets are everywhere
All the racket codes are listed here. http://www.badmintoncentral.com/badminton-central/content/view/78/33/1/1/
SP or CN are just Yonex racquets specifically distributed to certain parts of the world, they are the same, but shipped separately. CN = China, most of China's legit Yonex stock has CN on the shaft next to the racquet name. SP is not clearly known, it could mean Singapore, South Pacific or such. SP racquets are most commonly found in Hong Kong and Singapore, as they are distributed by Sunrise. Probably have those letterings as separate racquet batches, since China and HK/Singapore has a high badminton population. In short: CN: Yonex in China SP: Yonex in Hong Kong and Singapore They are all typically the same racquet, quality and such. Though some individuals have claimed SP racquets are made with slightly less quality (probably due to the mass amount made), such as not straight decals and print.
clarification. please becareful in differentiating CH and CN. CH is the Chinese mass market code CN (and CP) is the Chinese national team racket code.