My build is a aluminium & Carbon fiber chassis TT01, I did metal diff gears ⚙ front and rear, 64T metal Spur gear ⚙, 24T metal pinion gear ⚙, Rocket Pro V3 motor, 120A esc, magnet ? mounts with my own twist of single pin body clips, full light kit and receiver box. I recently had a minor wrecked I broke a front knuckle so I'm waiting for Amazon to deliver a full set of aluminium knuckles then I'm back ripping up the streets as I haven't found a good spot for speed run attempts yet. I must say though I am super impressed with the performance thus far.