That front sprocket is a stock Yamaha part for a 2003-2005 YZF-R6 or a
As stated above, the giveaway on that is the rubber damper attached to it (along with the 5SL model code molded into it).
Although I see no identification marks on it (other than the 48 for number of teeth), the rear one looks like a stock Yamaha part for the same bikes.
The gearing is written right on them: 16/48.
If you mean pitch of chain, the bikes came stock with 532.