Originally Posted by MILLENNIUM FALCON
Its around 9.5 inches. I'm new to this so I did a bit of research and talked to some people with experience and this number seemed to be in the sweet spot. What do you think?
I had 200mm / 8" on mine... And it just wouldn't turn..
I pushed the unit around in tight circles on the lawn &
you could see the car wheel being pushed sideways..
So I changed it to 100mm 4" lead that more than halfed the
side ways push on the car wheel.. And it goes around corners now..
you really need to make the car mounts adjustable so yer can
move the car back and forth to "tune" in...
The rule of thumb is no more than 15% of the bikes wheel base...
The altimate is to have the bike and car wheels in line..but that
has a few weight issue..IE .. car and bike wanting to tip foward..