Alligator Center Lock Adapter
The Alligator Center Lock Adapter converts center lock to six-bolt international standard.
NOTE: Includes lock ring and are sold individually.
Due to manufacturer restrictions we can only ship this item within the U.S.
Great product in terms of cost savings from buying the Shimano-branded adapter or Centerlock rotors, however, the aluminum lockring threads don't hold. They stripped out around 20NM. Glad it was the lockring and not my hubs. Wound up buying steel Shimano Centerlock lockrings to lock down the adapter and rotor.
While some people probably have had better luck I didn't. I got the to mount some Hayes 203mm rotors to my Shinano hubs. The first one stripped out before I even got close to the 40nm torque spec. And the other made it to torque(although I was very weary about trusting such poor quality and fit) but the posts on the splined color were way to small and the rotor moved waaaay to much. I took these off and I am sending them back right now. They only got a 1 out of 5. they look nice but that does not do much good when they are so poorly built I'd consider them dangerous to be on the bike.