Zefal 'Lock & Roll' Seatpost Clamp is Stuck

[Jim Boggs]

I'm having trouble with a Zefal 'Lock & Roll' seatpost clamp I bought
a few months back. It's never given me problems before, but when I
went to adjust the seat yesterday, I found that the clamp would not
open when I flipped the bike upside down so the clamp would be in the
release position. The clamp will wiggle a few millimeters, but it will
not fully open. Has anyone got a trick that might work to open that
bad boy?

[JoelMatthews]

Mine got stuck too. I could not work a solution and had to cut it off
with a hack saw.

Too bad. It is a good idea.

[Adam]

Yes. It's happened to me quite a few times. Turn it over and give it
a few hardy taps on the rounded point where the magnetic bearing lie
inside. It should then freely open. This has worked for me almost
every time. If that doesn't work I'd recommend using some pliers,
rather than a saw, to bend it open though it will then lose it's
security.

Let me know if that doesn't work.

Cheers,
Adam

[Jim Boggs]

A few solid thumps with a wooden spade handle solved this with ease,
thanks so much for the tip Adam. My lack of mechanical patience would
have normally led me to go the hacksaw route, many thanks for this
mutual-aid online community we've got!

[JoelMatthews]

I whacked mine a good deal before cutting it off. Maybe mine was
installed wrong?

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