Hope you checked the one you wanted, there is the choice between a 1/8 or 3/32 chain depending upon the chainyou have on your model. I have bikes with both Nexus hub gears, and 9 speed deraulier gears on pro Connect S. Got caught out many years ago by 50cycles who sent me 3/32 chainwheel for a 1/8. Hub geared Kalkhoff.Thanks. Parts now ordered - Hooray for Google translate!
Also noticed that they sell up-rated sprockets that claim to last longer than the Panasonic originals. I always though that the Panasonic chain rings wore quickly.