How tight for the seatpost QR

paulswilliams2

Greased my seatpost tonight and had a game tightening it sufficiently to stop moving. I think this is the result of the P7 shims, never had a problem on any other bikes before. It got so bad tonight that i had to twist the nut USING A SPANNER then shutting the lever USING MY LEG!!! Without the leg power, I could still twist the bloody saddle with a single hand - and I am a wimp!

As I brought some torque wrenches recently, I am thinking of getting a nut fastening rather than QR, though this removes the ability to saddle drop easily on the hill. Maybe a gravity dropper is the answer to that, but don't want to spend so much money when I just want to QR to work!!

How much force is too much force?

supersonic

Many people report similar problems - and it may be more apparent with a shimmed post. All the parts are made to a tolerance, and if yours are on the edge of this, it can be hard to get the required force from a QR - I much prefer bolted ones.

paulswilliams2

To hopefully remedy my slippage problem, I have purchased a lovely Hope bolted seat clamp tonight. Want to fit it tonight, but am now scared of snapping the bolt which is apparently quite common. As well as greasing it well before tightening, does anyone know the proper torque to apply using this clamp?

nicklouse

if you have a shim grease is not really needed as the shim can be used as a sacrificial part just apply some grease to the shim.

you are aligning the splits in the seat tube and the shim and the clap up?

paulswilliams2

Funny you should mention that, but the seat post slippage was much worse when I recently re-greased the post. Will clean and reapply the grease to the outside of shim only.

Any idea about torque settings?