If you're after the ultimate in performance on the rocks, this is the place to start. The 2.2 Pro class in competition rock crawling is the pinnacle in competition crawling. This has been going since 2004 and is the responsible for the birth of most of the scale crawlers we have today!
The truck I am assembling today can be found here is made by Dlux Fab.
Dlux 2.2 Kit: https://bit.ly/3JxbF4Y
Other Parts Used
Shifts RC GT3 Servo: https://bit.ly/3cSWaI3
Holmes Hobbies Crawlmaster Magnum Stubby Motors: https://bit.ly/3QgruyX
Holmes Hobbies BR-Mini ESC x 2: https://bit.ly/3QgrT4r
Futaba 7PX: https://bit.ly/3zVV47x