you need to choose a motor with gold connector

and Volcano XP4

4 par (han + hun) - 4mm guldstik

If you want to make sure your screws don't fall out

XRT Race Truck 8s Super Glow you need to choose aThe XRT is the wildest, most powerful, and downright "Bad Ass" car Traxxas has ever built. Big and wild like the X Maxx, fast and agile like a Revo. When Traxxas sets out to build the ultimate car, they go all in110%. The XRT delivers raw, unlimited power and extreme durability, only previously seen in the X Maxx, all in a package loaded with stunning aluminum details and wild brushless power! XRT Highlights: Heavy Duty VXL 8S Electronics Over sized