Originally Posted by
Dave Mayer
Recommendation: go back to the bloke who sold you your new wheel. Back in the day, Campagnolo hubs came with the lockrings. The 26mm lockring is almost impossible to find, except by paying extortionist amounts on Ebay, or by getting extremely lucky, as in my case.
I thought he said his lockring was too small, implying he has a 26mm and needs a 27mm. If that's the case, it should be pretty easy for him to find a 27, and he could probably sell the 26 for a bit if they are hard to find.
And I wouldn't pay $20 just for that 27mm lockring on ebay. You could probably find a used cassette for less money and just take the ring off of that.