Yup, change the oil seal why youre in there id suggest, also new circlip, verify at hermys for your bike, mine is a touring, if you have a roadster they have a bearing kit, you have to verify for your bike,
i will either go with world wide bearings or performance bearing, probaly world wide for wheels as they make kits already for busa kz and harley and trans and case bearings performance bearing. I will post on my drag only build thread soon. There are others as well nowadays as it’s becoming more affordable for the weekend warrior to attain these.