OK thank you! But on my Mugen MBX5, i'll can't use this mount, so i'll simply make an aluminium braket that i'll screw on the center diff plate, and use servo tape and zip-ties.

I've two novak 30mm fan but not sure if i'll install it on my controler. I've the same than yours, a 16018 with a Neu 1515 1Y.

Probably the fan will not be necessary on a 8 lbs buggy