There is a question about 2305 2450KV motor's thrust

[DivenParker]

I only know a little about quadcopter motors, and there is a question about my motor's thrust. I bought 4 pcs 2305 2450KV motors from a motor online shop, and I got a thrust data on their motor details, but my fridens said the thrust data probably is wrong, they should at least 1100g/1200g, but he is not sure.So what do you think of this motor thrust data? is this data right or wrong?
And this is my motors link：
http://www.genstattu.com/ta-motor-2305-2450kv-4pcs.html