Track Cycling: Velodrome Racing and Training Area - shimano lockring on formula hub?
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ECDkeys
05-12-07, 08:52 AM
I'm a little confused. I tried to put a new shimano lockring on a formula hub (replacing a formula lockring), and I couldn't screw it on by hand past a couple revolutions. Don't shimano and formula both use the same threading? The formula ring goes on and off easily by hand. I don't want to risk stripping my hub, so let me know if I'm incorrect in assuming that shimano and formula are compatible.
buzzybelmondo
05-12-07, 11:07 PM
i run a dura ace lockring on my formula hub
genericbikedude
05-13-07, 07:13 AM
Could it have something to do with your cog being a wider-shoulder variety? See sheldon's page:
http://www.sheldonbrown.com/chainline.html#sprockets
Also, be sure that you really have the cog well tightened down
polara426sh
05-13-07, 08:52 AM
I have D/A lockrings on my Formula hub and it works just fine.
ECDkeys
05-13-07, 09:47 AM
Well, I'll go back and try again. I just don't understand why I can easily spin the formula ring down to the cog by hand but not the dura ace. Now that you've assured me that they should fit, it points to me placing the dura ace on crooked. But I can't explain why it's only with the dura ace that I have this issue.
clean and grease all threads spin the cog on by hand then rotafix it than spin the lockring on by hand and tighten it up