Black Oxide can begin to rust if it happens to get dirty and or wet. Also, the sleeves will need to be lubricated in order to prevent them from freezing up. If you perform some very basic maintenance, you will retain the black luster of your Ivanko bars and the sleeves will continue to work fine.

1. Use a soft toothbrush to clean the dirt out of the bar knurling. If you can use an air hose to get all the oil and dirt out of the knurling, that would be ideal.
2. Once the bar is clean, apply a generous amount of "3-in-1" type oil to the inside bushing area where the sleeve meets the bar on both sleeves. Work the oil into the bushing and wipe clean afterwards. Then apply a generous amount of oil to the end of the bar, through the hole in the chrome cap. Tip the bar up so the oil runs down the end of the bar and into the inside bushing. Let the bar stand, slanted, for about 2-3 hours. Wipe off the excess oil and do the other end the same way.
3. Apply a thin oil coat of oil to the rest of the bar and let the bar soak overnight.
4. The following morning, wipe the bar clean and remove any excess oil so that the bar is dry.