HP said:My old bike has a freewheel that takes a 4-prong SunTour extractor. I
tried it, and the result was that 3 of the 4 prongs on the freewheel broke
off. I googled, and followed Sheldon Brown's advice and disassembled the
freewheel. My problem now is that the freewheel core is totall smooth, and
there is nothing for the bench vise to grip onto. Am seeking advice on how
to remove the thing, as I have to replace a broken spoke (and have to
replace the freewheel anyway). I've gotten some suggestions as using
penetrating rust-remover solvents, but there is no rust. The thing is just
torqued on really tight. I would appreciate any help.HP
The area around the freewheel pawls is the best place to grab with the
vice. If you take out the pawls, there should be a flattish surface to
grab with the bench vice.
Grip the wheel tightly so it doesn't twist, and unscrew the hub from
the freewheel. Breaking it loose sometimes takes a real heave (I've
seen heavy workbenches knocked over), but I've never had this fail.
Jeff