Hello to all,

The reason I ask it here it's because there is no way to email in the Shimano web, so I hope you can help.
I bought yesterday the DEORE XT SGS RD M786, and I noticed something strange-although I bought it from reliable store. The lower little pulley of the rear derailleur in shimano web and in a few webs and videos are different than mine:


1) bike.shimano.com/content/sac-bike/en/home/mtb1/shifting---braking/rear-derailleur/rd-m780-sgs-s.html



2) jensonusa.com/Shimano-XT-RD-M786-10SPD-Rear-Derailleur


Mine came without Durable sealed bearing pulleys. I attached image of my rear derailleur. There is any way to check if it fake? Someone knows where is the serial number? Or if it a different model of XT?
Thank you.