I had a mini hacksaw (the type where the blade projects beyond the handle) with a long blade. Once I’d made the initial notch with the hacksaw I then reverted to using the blade on its own, using a rag wrapped around the end of it to protect my fingers although this was super slow going. Haven’t had the chance to go back sawing since so its still not quite made my way through. I think I’m going to hit it with some WD40 for a few days once I’ve fully made it through the seatpost. Not sure what the plan is at this point for extraction though. Also, this rockhopper cost me 40 quid so if this goes wrong it’s annoying but not the end of the world. Best of luck!
I had a mini hacksaw (the type where the blade projects beyond the handle) with a long blade. Once I’d made the initial notch with the hacksaw I then reverted to using the blade on its own, using a rag wrapped around the end of it to protect my fingers although this was super slow going. Haven’t had the chance to go back sawing since so its still not quite made my way through. I think I’m going to hit it with some WD40 for a few days once I’ve fully made it through the seatpost. Not sure what the plan is at this point for extraction though. Also, this rockhopper cost me 40 quid so if this goes wrong it’s annoying but not the end of the world. Best of luck!