My cog has seized on!

my cog has seized on to my hub threads
i had been running a suiside hub for a bit wilst i was building up a new wheel, now iv got the wheel im trying to remove the cog and i wont come off
iv tryed a hammer
iv warmed it up
and if i push any harder the spokes will snap (the wheels munted)

and *it won't come off

Freezy lubey spray?

firery brazing torch

Penetrating oil?

try skidding
my frigging lock ring and cog always come loose when i try and skid

( not really, i'm a good mechanic me )

when you put the new one on try adding some lube / oil / grease that'll help you get it off next time.

Plus Gas.

Plusgas?

you are not allowed to laugh at your own jokes

Fires Of Mordor?

he's not trying to rid the world of evil you know, just remove his cog

try skidding
my frigging lock ring and cog always come loose when i try and skid

( not really, i'm a good mechanic me )

when you put the new one on try adding some lube / oil / grease that'll help you get it off next time.

Ignore the last bit. Always use copper slip or copper grease.

#dicki'sbadadvice!

wrong grease is better than no grease surely ?

just don't use superglue

wrong grease is better than no grease surely ?

Depends on the grease.

Therefore copper slip/grease is the best option for the future.

Meanwhile, back to business - soak it in PlusGas for a few days. Then use a decent tool (as opposed to one made of cheese) and the removal should be simple.

Rotafix it? Or try skidding without the lockring like dicki said. Or if it's properly fncked state which size cog you need and somebody should be happy to sell you a new one.

What if you ride brakless? Skidding could be deadly...

True, that method should only be attempted indoors.

WD40 fixes everything

PM Balki, what that man doesn't know about seized cocks isn't worth knowing.

wd40 has nothing on this stuff

.

Put a chain whip in a vice and turn the wheel like a possessed captain Ahab?

force x distance and all that

Rotafix it?

this. Rotafix will undo any sprocket.