Unfortunately they came out of the factory made from plasticine and loved to shear off. Was a couple of new ones early this year in Australia . Nice fellow seller wanted $1000 each.... Good Luck, best bet is to find a rare bottom end with shaft still in it.
Yes, found one on ePay..well used for $323
Whole bike only cost me $250...so no thanks
Looked at a complete bike the other day for $500, but it had a bolt welded to the kick lever to stop it coming all the way back which made me wonder if the spindle was broken internally or just the alloy case stop or whatever? Bike was running but frame broken in several places and really rough overall, so passed on it. Seems i should have jumped at it.