They will certainly work...correct heat range and thread....but why would you spend $70 + for a spark plug in a street bike?? The regular iridium CR9EI is just fine.
From NGK web site:
Racing Spark Plug
Type : RacingElectrode design : Engine tuning. Torturous racing conditions. Avoid problems due to extremes of temperature. Service Life ** FOR RACING ONLY ** NGK Racing spark plugs have been designed to withstand severe operating conditions, such as high combustion temperatures and increased pressures. Their superior performance has been proven in motorbike and car races in Japan and overseas, including Formula One, World Rally Championship and MotoGP.