Originally Posted by Mechvet
For the coaxial, if you're using the 2.5" Colson wheels, be wary of wheel wear and ease of repair.
Swerves rely on having all wheels contacting the ground, otherwise some pretty heavy drift starts happening. When we used the 2.5" colsons, we found they wore in a fairly heavy way, and our swerve drifted quite a bit. We didn't design the bottom axle for easy removal, so changing wheels was a pain. In the offseason we reworked the bottom axle to be easier, and it made changing wheels WAY easier.
This one is actually using the 1.625" colsons, removing the axles should actually be pretty easy, the shaft would either be tapped or just have shaft collars.