l changed the inner bearing&race at about 40k. didnt know it was pitted till l put the standard pipes back on & heard a noise, the bearing was o.k. but the race was as you see in the photo,it was a week before a 9k trip so l just purchased a standard set from the HD dealer to get it back on the road soon as,The first fuel filter l changed out at 25k it was cactus,l put a new one in when l had that trouble with the leaking fuel line & had to remove all the insides anyway, it was looking as new so l suppose it depends on the cleanlyness of the fuel in your tank,wheel bearings are the origonals except for a rear one on the belt side it felt gritty so swaped it at 52k..l also check them at tyre changes and replace if needed..2006 street bob..