Cheapest place to buy axles?

I'm looking to find the cheapest place to get a used axle for a 1994 300ex. All I really need though is the piece that the sprocket bolts to, but it doesn't come seperately. Anyone have any ideas?

Scott

[Giz400ex]

Try that Service Honda!! I think its www.servicehonda.com...... there new parts but I've seen parts in there pretty cheap.