Replace the dust seals at the same time,
Pry the old seals out with a big screw driver. Drift out the old bearings, clean the hole up, light coat of copper slip and tap the new bearing in with one of the old bearings and a hammer or mallet. Line up and tap the new dust seals in with one of the old wheel bearings and a hammer or mallet.
Clean the wheel spacers and grease then lightly, then reverse them so that the new seal is not running in the same groove that was cut by the old dust seals.
I do not mean put the LHS spacer on the right side of the wheel and the RHS spacer on the left side of the wheel.

Just want to make that quite clear.
Honda dealer will have them in stock, pretty sure they are the same as the older Blades, CBR 600's, NC30 and NC35.
I have a large beetroot jar full of them and dust seals, John Silvers (google it) had them on special a few years ago, genuine Honda parts for less than Pattern (and all nicely sealed in little Honda plastic bags to keep them fresh) Next day delivery too.