Blowtorch. Then cooling quickly. The different rates of contraction, of the two metals, will free the seatpost. The risk with the hacksaw job is: that you end up cutting into your seat-tube, whilst getting really bored and peeved off in the process.
I'm surprised you didn't try it in a vice, pre cutting.
Blowtorch. Then cooling quickly. The different rates of contraction, of the two metals, will free the seatpost. The risk with the hacksaw job is: that you end up cutting into your seat-tube, whilst getting really bored and peeved off in the process.
I'm surprised you didn't try it in a vice, pre cutting.