lol bugger. I was wondering if you might have ordered one already.
Is there a CBC Bearings or similar near you that might sell the o-rings?
Ideally I want somewhere to mail them to me, but I'm going to call a place tomorrow that's close to home for me. If they stock them or can get them easily, I'll buy extras I can mail some to you if needed. Worst case I have spares. And if you find anywhere that will post, let me know please!

