Coke can shims will stop slippage, but if you run the wrong size seatpost for long enough you may crack your frame as the seatpost isn't supported all the way down... they tend to go round the front of the seat tube. I wouldn't do this on a decent frame, esp anything with thin walled tubing.
Coke can shims will stop slippage, but if you run the wrong size seatpost for long enough you may crack your frame as the seatpost isn't supported all the way down... they tend to go round the front of the seat tube. I wouldn't do this on a decent frame, esp anything with thin walled tubing.