New brushless e-revo owner

[Gee]

Welcome to RCM. Gotta watch out for them thar trees. What kind of hubs you using on it? The 14mm or 17mm? Could be a few things like just the loose nut behind the wheel. JK

Something could be loose, check the pivot ball retainers. If it 14mm hex it could be a bent pin. Axles shaft could of gotten bent. Swap the tire with the one behind it and see if the wobble follows the tire or stays on that side. That will help you figure out what the cuase is. If lucks on you side maybe the wobble will be gone after you swap the tires.