16 mm. sockets are not real common where I live. On the other hand, I've yet to find a 16 mm. head that didn't act really comfortable with a 5/8" socket. 5/8" = 15.9 mm. That doesn't solve the wall thickness issue, but it's been useful for Stronglight bolts in Stronglight cranksets with the 23.35 or whatever diameter.
harvey sachs mcLean va.
Jerome & Elizabeth Moos wrote:
>> One other piece of Zeus crank trivia - the extractor thread was 22mm
>> like Campy, but Zeus used 16mm crank bolt heads like Stronglight.
>> This means you need a really thin walled socket to remove the crank
>> bolts. Lots of people replace Zeus crank bolts with Campy 15mm ones,
>> but I take great pride in retaining the original 16mm bolts.
Sinner that I am, I replaced mine with Aluminum crank bolts from Arnold Industries:
>> Of course, I have a couple of thin walled Zeus crank bolt wrenches.
Park makes a thin-wall wrench that works in both Zeus and old Stronglight cranks that use 16mm bolts.