Bicycle Mechanics - Remove a cassette with missing lockring?

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thehum
03-27-08, 06:24 PM
I have an inherited 1997 Fuji Odessa MTB. I'm trying to replace the rear cogs (7-speed) and went to remove the (what I believe to be a cassette) then noticed there's no lock ring. Strange, even though the visible ring says LOCK. It says Sun Race on it. I have the Park FR-5 which only fits on the way inner splines that dosnt rotate. Here's what it looks like

http://img.photobucket.com/albums/v225/thehum/freesette.jpg

Am I missing something or is there really no lock ring on there? How do I get this cassette off? Or is it a freewheel? Help Appreciated. Thanks.

Camilo
03-27-08, 06:27 PM
This might help:
http://www.parktool.com/repair/readhowto.asp?id=48
thehum
03-27-08, 06:35 PM
hey i am actually following that guide but i'm still confused because it says "lock" but doesn't have a lock ring so I suspect its a freewheel but would like verification. thanks.

Little Darwin
03-27-08, 06:41 PM
On some 7 speed cassettes the small cog is the lock ring.

You will need 2 chain whips, one to hold the cassette, and one to rotate the small cog counter-clockwise.

Things will look familiar once the small cog is removed.

EDIT: The UG cassette is hard to find, so if you are thinking of replacing, you have only a few choices.
thehum
03-27-08, 07:05 PM
Well I figured it out. It was actually a Freewheel. I managed to unscrew it using the FR-5 lockring removal tool. All is well. Fooled me. Thanks though.
BCRider
03-27-08, 07:57 PM
I was going to say that it IS a freewheel. In your picture you can see down along the axle much too far for it to be a freehub setup.