Well i decided after my rims were sumerged in snow, mud, etc. form the seson to take the hubes apart. I have a hardrock. It was very simple to take the axles and ball bearings out. There were a total of 18 big ball bearings in back and 20 smaller ball bearing in the front (FYI thats the exact number there should be) they were in great shape cleaned them, hube, axles, etc. Now what grease should i use? I plan on riding compleley urban next season. anything else i should now before i buy the grease and re-assembly? Thanks