I bought mine from the local Yamaha dealer; took about a week to get them.
They are not too expensive....
Incidentally I think their parts people are dumbasses because I asked them to specify whether they came with races or not and they said that the bearings did not use races....WTF ????
I quit trying to teach the pig to sing and just ordered them and they did come with races....
We can have a whole new thread:eusa_dance: on here when you get ready to change them and try to remove the lower race form the neck... it can be a real bitch getting them out........there are several tried and true techniques I'm sure that people have to offer..