Cassette needs extreme brute force to remove

[jack smith]

I've had atleast three that say recommended 40nm

 

[Smurfy]

Last time I needed to remove a freewheel I could not manage, took the wheel to lbs, it took 2 mechanics and a lot of brute force ... the first mechanic to attempt it had to call on another, more muscle endowed
Now I've got a spanner extension leaver, which is just the bottom tube of an old garden parasol.

Sssssssh! They'll be queueing round the block to borrow your parasol extension!