33000001
These are genuine bearings sourced by Mavic. NOT cheap Chinese counterfeits. Remember that you get what you pay for.
This bearing set is used in quite a few Mavic rear wheels, including, but not limited to, some Ksyrium SLR, SLS, R-SYS, and Elite S (2013).
This bearing set includes two bearings: (24 X 12 X 6) and (22 X 9 X 7).