[ksafin]

Originally Posted by R.C.

http://www.vexrobotics.com/vexpro/we...sachassis.html

Under Drawing:

http://content.vexrobotics.com/vexpr...awing-Rev2.PDF

Its tapped about 1.5" deep, it should work for almost any wheel configuration. You can also drill deeper if needed.

Thanks for all the info! Also, out of curiosity.. what's the benefit of using bolt&washer and/or a retaining clip for holding the sprocket and wheel as opposed to axle collars? More robust?