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Surely there must be something I'm missing?
No, it's just a shit design, just as inaccessible seat post bolts were back in the 1950s when Campag had them. This is why the P3C has a completely different seat post which is shit in different ways, superseded by the "Nuovo" P3 whose seat post finds whole new ways of being shit.
AFAIK, @specialist has a P3SL so he might have some hints, rarely seen on here so you might have to PM him to wake him up. -
A seat with a cut out helped on my old p3 alloy- you could get at the second bolt that way from the top. It is just a bad design though but once it’s done it’s hopefully done
gbj_tester
Tallboy
@SwissChap
A question for owners of older Cervelos: On the seatpost of a P3SL frame I bought, the bolt system on the seat clamp is rather annoying to use - one bolt is accessible from underneath, which is great. But the other one is a 'thumb bolt' that controls the saddle angle which, when you put the saddle on, is extremely difficult / annoying to operate, as you have no access from underneath (meaning I have to somehow jam my finger in to turn it). Am I missing something super obvious on this? Is there some kind of trick to make this easier? (It's very similar in design to a Fizik R1 seat post clamp, but that one has the 'dial' bolt mounted in a way that it is actually accessible even when the saddle is on the clamp)
My approach so far has been to dial it in roughly right before I put the saddle on, leaving the other bolt completely loose, and then to try to do the rest once the saddle is on - but you can't tighten it too much beforehand, otherwise it's impossible to get the saddle on.
Surely there must be something I'm missing? Grateful for any suggestions!