Re: Seatposts slipping

I use a seatpost clamp (like this or this) clamped directly to my seatpost to prevent slipping and maintain my height adjustment. Unfortunately those particular clamps aren't practical if you lower your seatpost to fold (I remove the seatpost to fold and transport my Swift).

A QR clamp would work, at the expense of adding another step to the fold/unfold process. I haven't seen one in 34-35mm but I'm sure someone stocks them.