We are talking about those standard Tamiya RC cars not the TRF ones.
If you are to use BL system on any of these cars, do not attempt to go for anything too aggressive.
Something on the line of 13.5T or 17.5T would be just fine.
The one shown here is a Team Power 6.5 Turns. It is way over powered for the TT01 (spur gear damage).
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