It weighs about 2-2.5oz so it is quite lightweight.

The shock absorber does require some servicing as well. Its an RC car shock from Tamiya. I have been replacing the oil in the shock or at lease checking ti fluid elvel and filling it up about every 50 flights. You simply use the Tamiya 600WT silicone shock oil. I have been using Team Losi oil that is 60Wt and it is the same stuff as the Tamiya 600wt as far as I can tell. Its a pretty simple process.

What engine are you trying to put on this mount?

Troy