Ok, I recently purchased a used B4.1 Worlds. I'm trying to buy some rims/tires for it, but, low and behold there seems to be 3 different (minimum) rim holes for this buggy.
The original fronts are round with a 1.5mm(head size) screw that holds them on. The rear appears to be a 7 or 8 mm hex nut, not sure because I don't have anything that fits it.
Now, I've seen rims that are all hex, I've seen rims that have the round holde like for the front, then I've seen something kinda' star shaped for the rear.......... help me!! what's the deal?