Hi Matthias,
we have to use the Carson Cup Machine brushed motor. I think you know this Black Can equivalent very well
Batteries are not limited.
i always use shortys - Vampire Batteries works so well ... - also to have the possibility to change the battery position from rear to front within the short wheelbase...
and i fully agree. i love the S-Grip tires on the rear wheels. they work very fine...
cheers
Flo