Originally Posted by Julius
After a day's running take the cvd's out and clean them. I take them completely apart (loosen the 1.5mm hex in the cvd and push out the pin). Clean with putty or brake cleaner and relube. I use a teflon based grease. The grease attracts a bit of dirt but I find the cvd's last much longer then when using oil or nothing at all.
The cvd's require a little more maintenance but can't fall out like dogbones and run smoother.
I use a teflon based lube that pushbike racing riders use on their chains. This lube has the added benefit of not attracting dirt.