Dura ace or Formula lockring...
#4
Senior Member
Joined: Feb 2006
Posts: 676
Likes: 0
From: Boise, Idyho
Bikes: '04 fisher 29er, NYC Bikes CityFixed
DA is better. My formula lockring has been fine. If you're changing cogs a lot and removing and re-installing the ring, definitely use the DA. If you're installing a cog and leaving it there, use either, just clean the threads and grease before you install it.





