I fitted the first link head steady to my Commando in 2003. It's never been re-adjusted since and only had a little drop of oil now and again. It truly has been up to now a fit and forget unit . An unexpected advantage I've found is the ISO's stay in spec a lot longer. I've yet to adjust mine for wear in the 15000 to 20000 miles its been fitted. It must reduce the loading on the PTFE washers by preventing the motor /rear wheel unit from twisting.
Cash