Losi LOS3752 6x10x3 Ball Bearing On-Road Tires which is what you move

which is what you move to change rear roll and how quickly the car reacts

Inspect the battery

The FC6250HX is a powerful flybarless helicopter stabilization system that features the latest AS3X and SAFE Stabilization technology to deliver an extremely user friendly and precise Helicopter flying experience

(4)      3x6x2

Losi LOS3752 6x10x3 Ball Bearing On-Road Tires which is what you moveThis is a 6x10x3mm ball bearing designed for the Losi 5IVE platform, specifically for vehicles using the 2. 0 steering rack assembly. It's built with a high quality rubber sealed housing that keeps dirt and debris out of the ball track while retaining internal lubrication, helping it continue turning freely even after hard use in dusty or muddy conditions. As a precisely sized factory spec part, it installs directly into the original bearing location