On May 16, 6:56 am, Bob Ross wrote:
I'm thinking of getting a Wippermann Connex (or equivalent quick-
disconnect link) to make cleaning my chain & drivetrain easier. Is
there any downside to these gizmos?

I've read 1 or 2 anecdotes about quick-disconnect links coming undone
at the starting line of a race (!) but as far as I can determine
that's not a common enough occurence for me to worry about. I'm more
concerned with whether they affect longevity/durability of the chain
or cogs, or if they affect shifting, or... well, anything that might
be viewed as a negative.

Any reason I shouldn't consider one?

I swore off the Wipperman ones after one broke as I was taking off
from a 4-way stop last year. I was barely moving, but I went down
pretty hard. Since then, I've stuck with KMC and SRAM quick links,
more out of superstition than any empirical quality concerns.

Like you say, it's not a common occurrence, but once is really all it
takes.