Grease anything that gets threaded or pressed into frames.....it will make it easier to remove at a later time if/when needed.
Also helps to prevent creaking/squeaking.
Never heard of anyone greasing the underside of the Shifter/Brake lever clamps.
Lube the seatpost so you can raise or lower the post......leaving it dry, you risk the post becoming frozen in the seattube.
I often lube the QR lever on the seatpost clamp, to help with opening and closing.
Seat rails......goes back to that creaking/squeaking thing.
Park Poly Lube is fine for all of these applications.
HOWEVER: Witha carbon seatpost, you don't grease it with normal grease. Carbon post into a steel/al/Ti frame, leave it dry. Carbon Post into a carbon frame, use carbon friction paste.
Also helps to prevent creaking/squeaking.
Never heard of anyone greasing the underside of the Shifter/Brake lever clamps.
Lube the seatpost so you can raise or lower the post......leaving it dry, you risk the post becoming frozen in the seattube.
I often lube the QR lever on the seatpost clamp, to help with opening and closing.
Seat rails......goes back to that creaking/squeaking thing.
Park Poly Lube is fine for all of these applications.
HOWEVER: Witha carbon seatpost, you don't grease it with normal grease. Carbon post into a steel/al/Ti frame, leave it dry. Carbon Post into a carbon frame, use carbon friction paste.