Q – The recommended torque is only 2.8 Nm. Is that enough? A – Yes. On a 27.2 post in an aluminum frame at 2.8Nm of collar bolt torque it takes 900+ pounds of force to make the seatpost slip.
http://bikethomson.com/collars/
That's alu on alu though.
@hippy started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Q – The recommended torque is only 2.8 Nm. Is that enough?
A – Yes. On a 27.2 post in an aluminum frame at 2.8Nm of collar bolt torque it takes 900+ pounds of force to make the seatpost slip.
http://bikethomson.com/collars/
That's alu on alu though.