Yonex has made an official guide to determine if a racket is counterfeit or not. here it is http://www.yonex.com/interests/news_b/html/counterfeit_products/index.html Illegal imitations of YONEX badminton equipment can be found everywhere! Please take extra precautions if you are looking to purchase from unauthorized internet sites!! There are many imitations of YONEX equipment found on internet auction sites. Many of them are crude copies that break easily injuring you or causing damage to your surroundings. Please be careful when you buy products from unofficial stores and sites. Counterfeit racquets are not covered by our product warranty. We are constantly trying to reduce the availability of YONEX counterfeit products however products still appear on the internet so please take extra care. Below are some of the differences between genuine and counterfeit racquets. Some of the differences to look out for between Genuine and Counterfeit products No.1 It’s hard to peel off the hologram sticker. It’s difficult to remove the hologram sticker on genuine racquets due to the special glue used. With counterfeit racquets the hologram sticker is easy to peel off with your nail. No.2 Please check the YONEX logos. andare printed clearly. The [O] in YONEX on counterfeit racquets is often wide and round, with a larger space inside the [O]. No.3 Please check the production numbers on the racquet cap. All genuine racquets have laser engraved production codes on the cap above the handle. No.4 Please check the colour of butt cap. If you already have a genuine racquet, please compare the butt caps colour. A counterfeit racquet will often be a different shade of green, too light or too dark. As well as racquets there are many examples of counterfeit clothing, shoes and strings. If the price is remarkably cheap compared to the genuine product then there is a high likelihood that it is counterfeit. Please take extra care when buying YONEX products from unauthorized internet sites or auctions. If you have any questions regarding YONEX products, please contact your local distributor.[Europe / Africa / Asia / Oceania / America]
I thought this was on the Yonex website years ago...and counterfeits have gotten a little bit better since then. However, they still are far from perfect in my opinion.
Most of the information is the same no? I remembering seeing those exact same images a few years back.