[QUOTE=George16;357657]Well, I finally was able to solder and install the Tekin truggy combo into my ST RR. I ran it for a about 15 minutes today (just straight passes on asphalt) and I was surprised at the smoothness of it. It seems to be more powerful compared to the Castle/MMM combo because I was able to ride wheelies on the the truggy when normally it would not do it with the Castle combo. I will be changing the center diff oil to about 10-15K later to prevent wheelies. The Tekin motor is 2000Kv (equivalent to Neu 1515 2D).
George very nice truggy. One thing I wanted to mention, I am also using a Tekin motor and if you have the motor wires soldered on out towards the back like you do the mass/momentum of the wire can pull the motor solder tabs away from the circuit board. I have rerouted my wires so they are mounted out towards the front of the motor and I have had no issues with the motor solder tabs.

Wire pulling the tabs away from the circuit board

Rerouted wiring over the motor vs out towards the rear.