pic: Concept 8wd Drivetrain

[AndyB]

Originally Posted by Daniel_LaFleur

Couple of questions:

1> HDPE is rather slick, are you planning on covering it with roughtop?
2> Are the center 4 wheels lowered? If so, by how much/. If not, how are you overcoming friction?
3> Whats the diameter of the wheels and whats it's expected speeds?

I'll let sdcantrell56 answer officially for himself,

but I'm pretty sure there is a tread on the wheels already (If you look closely). I think he meant that the hub itself was made out of HDPE. The two sets of center wheels also appear to be slightly lowered by my eye, but I could be fooling myself. The wheel diameter looks to be 4".