This IS the way to remove your busted up freewheel from your pedal arm You Need: - A crowbar - A gas camping stove - A pickaxe - An angle grinder - A saucepan - Some cold water - A vice - A hench guy with some big muscles - A screwdriver - Pliers - A hammer - Your crank arm with freewheel attatched - A nice new freewheel to go back on! How To! so yeah, i discovered this method the other day when the acs freewheel on my t-pro broke and was completley stuck on so tight, so first things first, take the crank arm off your bike with the freewheel on...and also take off the pedal. using a screwdriver and hammer (maybe needed), take off the cover on the back of the freewheel ....completley unscrew it. now the cog thing should just lift off, but u need something to catch all those ball bearings!! so act quick! take everything off the freewheel that you can, so you're just left with 2 parts on your crank arm: the crank arm itself, and the centre core bit of the freewheel. ok fun stuff now...you can see on the freewheel part that there is some flat recessed bits on it (4 of them around the freewheel), above the threads. so to get a better grip in the vice, you take an angle grinder and clamp the freewheel in a vice. you grind away 2 opposite flat recessed bits, until you end up with 2 good flat edges on either side of the freewheel... where some goggles kids, safety first and all that go check the freewheel now fits nicely in the vice...if it doesnt, do some more grindage till it does now...get the saucepan, fill it with some cold water. get your gas camping stove, light it and set it to MAX!!!! Grab hold of the pliers and hold the end of the crank arm (pedal end), then hold the freewheel over the stove for a few mins. (the pliers are so you dont burn the crap out of your hands....) then whack it straight in to the cold water...do this like a few times, then the last time heat the hell out of it...yeah watch out it'll be bloody hot, and so easy does it, go clamp it in the vice so that the flat grinded bits are touching the plates on the vice. now get either the pickaxe or the crowbar, whicherver tool you prefer and go whack the vice arm to tighten it up reallll good. now take the crowbar (this seemed the best tool after trying a few times)...and smack the pedal arm reallly really hard (anti-clockwise)...if the thing just slips out of the vice, just whack it back in again....and just keep hitting it with the crowbar. then eventually it will undo and the freewheel will come undone and its the biggest feeling of acheivement all year. then grease up the threads, and screw on the nice new freewheel. job done well thats the tried and tested method of removing a freewheel kids. have fun