Tightening Shimano Cassette lockring

For discussions about bikes and equipment.
BigFoz
Posts: 485
Joined: 2 Jun 2011, 12:33pm

Tightening Shimano Cassette lockring

Postby BigFoz » 18 May 2018, 2:01pm

Don't usually do Shimano, so applied my usual technique of doing the lockring up "good and tight", and the free wheel stopped working!

Have loosened it off and the freewheel seems to freeze around finger tight + 1/2 turn. What causes this, and is there a method I'm missing? Never had this with a Campag cassette. Is finger+1/2turn tight enough or will the thing fall apart under riding conditions? Bruce?

tim-b
Posts: 742
Joined: 10 Oct 2009, 8:20am

Re: Tightening Shimano Cassette lockring

Postby tim-b » 18 May 2018, 4:12pm

Hi
40Nm, tight, but not as much as you might imagine:)
Regards
tim-b
~~~~¯\(ツ)/¯~~~~

Brucey
Posts: 28868
Joined: 4 Jan 2012, 6:25pm

Re: Tightening Shimano Cassette lockring

Postby Brucey » 18 May 2018, 4:24pm

what hub and cassette model are you using, exactly?

cheers
-------------------------------------------------------------------------------
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

User avatar
fausto99
Posts: 219
Joined: 19 Sep 2011, 10:06am

Re: Tightening Shimano Cassette lockring

Postby fausto99 » 18 May 2018, 4:40pm

BigFoz wrote:Don't usually do Shimano, so applied my usual technique of doing the lockring up "good and tight", and the free wheel stopped working

Doesn't sound right at all. Good and tight should only push the cogs and spacers together (until the spacers crush?). If the freewheeling action is affected then the freehub part must be broken in some way such that allows the moving part to touch the hub shell.

Brucey
Posts: 28868
Joined: 4 Jan 2012, 6:25pm

Re: Tightening Shimano Cassette lockring

Postby Brucey » 18 May 2018, 5:18pm

Brucey wrote:what hub and cassette model are you using, exactly?

cheers


the reason for asking this is that if the wrong combination is used, then you can get all kinds of weird things happening, eg

-sprockets hitting the spoke protector disc or pushing it into the spokes
- lockring going further into the hub than normal, causing binding (eg by pushing the seal too far into the hub, or by the lockring fouling on the axle seals directly)

cheers
-------------------------------------------------------------------------------
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

Valbrona
Posts: 2112
Joined: 7 Feb 2011, 4:49pm

Re: Tightening Shimano Cassette lockring

Postby Valbrona » 18 May 2018, 5:26pm

You might find that the leading edge of the lockring is bottoming out against a component on the axle, like a dustcover. So, if you use a lockring of shallower depth it wouldn't happen.
I should coco.

gxaustin
Posts: 219
Joined: 23 Sep 2015, 12:07pm

Re: Tightening Shimano Cassette lockring

Postby gxaustin » 21 May 2018, 1:52am

Are you missing a spacer - so the lock ring screws in too far and fouls the mechanism? EG 10 speed cassette on 11 speed hub?

pwa
Posts: 6858
Joined: 2 Oct 2011, 8:55pm

Re: Tightening Shimano Cassette lockring

Postby pwa » 21 May 2018, 6:39am

BigFoz wrote:Don't usually do Shimano, so applied my usual technique of doing the lockring up "good and tight", and the free wheel stopped working!

Have loosened it off and the freewheel seems to freeze around finger tight + 1/2 turn. What causes this, and is there a method I'm missing? Never had this with a Campag cassette. Is finger+1/2turn tight enough or will the thing fall apart under riding conditions? Bruce?


I've used Shimano freehubs since they first came out and I've never known that to happen. Something unusual is going on.