If you own an ST2, 3 or 4, you might be interested in knowing that the steering head bearings from a 2002 Honda SP1 (RC51) will fit these Ducatis. Honda can usually supply them within a couple of days and at $33 each they are less than half the cost of the Ducati bearing. The Honda bearings are the same cheap plastic caged balls but at a price that will still allow you to feed the kids. None of the local bearing houses could supply an equivalent.