Sprocket cassette stuck?

The bike shop where I bought my bike (which thankfully no longer exists) tightened the mountain bike sprocket set so tightly that it wouldn't come off. Two people had to stand on the tool, but nothing worked.

Are there any tricks?

I haven't found anything suitable to extend the lever yet.

(2 votes)
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FelixLingelbach
1 year ago

It's a screw ring, I assume, because they're usually very tight.

The pros clamp the socket in a sturdy vice, place the wheel on it, and use it as a lever. It's always a good idea to have the tire fully inflated while still on the socket.

I got myself a German army key for tanks. Mine is even longer, but I also like to ask someone to hold the wheel when I want to get the rim off. If necessary, I'll even hit the key with a heavy sledgehammer.

WD-40 is also helpful, which you spray onto the screw ring from the front and back.

I can also extend the lever with a large box wrench. I have a huge one that the scaffolding fitters forgot.

FelixLingelbach
1 year ago
Reply to  tinalisatina

So you're using the chain whip?! Then you only have to spray the lid.

FelixLingelbach
1 year ago

Yes, that's what I thought too. You don't need to tighten this lid that much. But I've had problems with this closure before, and I've even broken nuts in the process.

LDanne
1 year ago

Impact wrench.

The easiest way is to get a suitable socket wrench with a 1/4" drive and take it to your nearest tire shop or auto repair shop. (I'm assuming there's no "normal" nut or bolt on it; you need a special tool.)