The ESC of HBX 901A RC car is making abnormal sound, do I need to replace it?

Is the HBX T10 RC car able to be fitted with a roll cage?

Avoid using hard or sharp tools to clean up as this may damage the heatsink.
If the dirt on the heatsink is difficult to clean, you can use a small amount of alcohol or a special cleaner, but make sure that the cleaner will not corrode the heatsink or leave a residue.
After cleaning, wipe with a dry cloth to ensure the surface of the heatsink is…[Read more]

Maintaining and servicing the heatsink of your RC car mainly involves cleaning dust and dirt regularly, as well as inspecting the heatsink for deformation or damage.
Dust and dirt will prevent heat from escaping, so the surface of the heatsink should be cleaned regularly with tools such as a soft brush or hair dryer.

This can be related to wheel balancing issues, suspension failures, handling issues, etc.