Notice When Using TA05-R
A running R/C car constantly charges and discharges static electricity caused by friction from pulley and belts/gears, etc.
The amount of static electricity that is built up changes according to conditions such as temperature, humidity, driving environment, part material, and chassis layout. Some R/C cars may experience mechanical trouble or out-of-control driving due to sudden discharge of static electricity.
We have discovered that the component layout of the TA05-R Chassis Kit (ITEM 49418) makes it relatively vulnerable to the scenario described above, if used with a metal-geared servo under certain conditions.
As a preventive measure, use of the TA05 Lightweight Carbon Lower Deck (ITEM 53893) is recommended. This carbon and fiberglass deck effectively dissipates static electricity generated during R/C car operation.
Source : Tamiya