Originally Posted by
bhkyte
Difficult without seeing it.
Too true
Originally Posted by
bhkyte
Maybe the bolt that attaches clamp to frame is too tight ... Wounder if tightened up clamp too much and distorted top of seatpost tube.
Definitely could have been a problem, on my first tighten I cranked the frame bolt fairly tight (15 ft-lb?). The seatpost tube isn't distorted to the eye (but I didn't get my micrometer out). However, if I loosen the frame bolt, the problem is resolved and the seat post slides freely
Originally Posted by
bhkyte
Is the tiny grub screw at the front all the way out and it catching this. The role of this adjustment is to push the rubber shim inwards. There is another tiny grub screw that holds the rubber shim in place.
I tried adjusting the grub screws, they aren't the problem. The top one holds the rubber shim in place. The bottom one, however, doesn't seem to be a shim adjustment. It doesn't touch the rubber shim, instead it seems to act as a spacer between the rubber shim and the frame seat tube. It creates an air gap that corresponds to the gap machined in the seatpost clamp between the frame bolt and the seatpost QR.
Anyhow, as it is it's fine - I've fastened the seatpost clamp loosely, and it won't have much upward force applied so it's not going to pop off, right?