Hi, regarding the Tekin motor. I am running them in my buggy and truggy. The buggy separated a magnet on the first pack, Tekin customer support got me a replacement within the week and it has about 6 packs thru it with no issues. The truggy motor has been going strong since day one (about 12 packs). Both motors perform well, are very strong, and temps are good. The 3mm/4mm mounting holes are a great feature (I use the Losi mount with 4mm screws). I have been running them with a MMM ESC and this combo works fine.
Separated magnet
New replacement rotor