Shimano MicroSpline HG+ 12mm Thru x 142mm 32 Hole Center-Lock Disc Available Bicycle Rear Hubs
12mm Thru x 142mm
The hub drilling is the number of spoke holes. It must match your rim spoke count.
This should correspond to the type of brakes you have on the bike.
These models are available for online purchasing and can be shipped directly to you.