Quote:
Originally Posted by azrider
Thanks for chiming in here OP. Unfortunately, the post I have is already knurled (that a word?) so that aint an option.
Background: I over-tightened seatpost bolt and broke it off in the seatpost cluster and had to have it backed out. 
My shop lubbed it up really well and put stainless steel screw in there and now I'm too much of a wuss to tighten it too much. So i took it BACK to the shop and they tightened it down to "little more than 7Nm" and sure as sh*t it slipped about 2mm after 2 hour ride last night.
Can steel stretch over time ?? |
Yes it can and the SP may be undersized to boot...if it still slips after being knurled.