[Closed] Cassette 'welded' onto wheel - any ideas?

Heat? You could try pouring a kettle of boiling water over it.

Take it to the shop.

Unless your using a park sr2.3 or equivalent(and if it bent that suggests your not ) and an 18 inch shifter that is.

With that set up I've removed threads from freehubs before breaking tools.

Just to check the locking ring is not coming off?

I have had this before and taken it off with an air-driven impact gun. Other things to try are freeze spray, tightening the lockring, heat onto the locking (noting too much heat could damage the freehub bearings, but if you are willing to replace them it's an option).

You should be able to take the freehub off with the cassette IIRC. Take out the axle, then remove the freehub with a (10mm?) allen key. Once you have the cassette/freehub combo off you then have a few more options. You can stick the whole thing in a vice or wrap a chain around the cassette and hold that in a vice. Or replace the freehub with a new one.

Been there ... in my case the wave washer thing had snapped and the chainwhip just bent with a 6' lever.

I bought a Parktool chain whip (like you I needed a new chainwhip anyway) and stuck the cassette tool in a vice. Had to get the OH to help keep the whole workbench from moving but other than that it then came off.

I had this recently. Ended up spending about 2 hours with a hacksaw at the lock ring to try and 'reveal' the cassette a bit - they're made of tough stuff.

I then clamped an old chain in a work stand and wedged the wheel to act as a chain whip. With the cassette removal tool on the end of a long bar, and me standing on the work bench, it finally budged but it was stuck, hard.

I use this type of chain whip instead of the traditional type: https://www.decathlon.co.uk/chain-whip-cassette-remover-id_8309913.html
They're so much easier to use. If it's really tight you should be able to get a bar on the end for extra torque too.

I had the same on an old wheel and ended up binning the wheel. It was a low quality thing with a quando hub so no great loss. I was more annoyed that i had bent my chain whip trying to save it.

The Decathlon one doesn't do 10t sprocket so I bought the Park Tools whip. It's plenty big! Also a decent lock ring tool you can get a breaker bar on I think mine is IceToolz. These things are usually solved with a combination of purchase and force. Btw if anyone wants my Decathlon whip I'll post it for a tenner pm me.

@fooman - I'll have it please. I've PM'd you.

WD40 / penetrating spray, lock-ring socket in a vise and a Pedros Vise Whip.

This doesn't help but I have a similar problem - inner bearing race fused to the crank axle.

Tried penetrating oil. Tried everything, but it's hard to get hold of it because of its shape, size and location.

So I bought a Dremel.

I was about to suggest that Dorest. IS it possible to cut the lockring up into little bits without damaging the thread on the freewheel? I guess only two or three for it to come off

I think I may be heading for a different approach - I have a better wheel (with a SRAM x-9 hub) sat there doing nothing but it will need converting from 142mm (maxle) to 135mm (QR) which I think can be done.

Dremel update - my bearing race came off with about a minute's Dremeling. Easy. Just a little scuff on the axle that I'm not worried about, and could've been avoided if I wasn't so ham-fisted.

My first Dremel job, I am impressed. Excellent tool! I can also use it to polish up the rather messy crank axle now.

@Higgo I think Paul at Ride and Repair down in Macc is open. Maybe he can assist with the cassette removal?

http://www.rideandrepair.co.uk

@carlos - thanks but I gave up and bought a new wheel.