Fitting belts within your frame

[dellagd]

Originally Posted by Joey Milia

22t is the absolute largest you can fit in 2in 1/8 wall tubing. We offset the baseplate rivets from the belts and we do the center drop by pushing the outer wheels up 1/16 and the middle wheel down a 1/16th. I think if you did it all from just the center or just the outer you would get some rubbing. Going 3/32 either side of center to get 3/16 total should be possible though. (please check in CAD though I haven't looked at it for a while)

We chose to go with 2x2 instead of 2x1.5 because of how tight the belts are in the tube. 1.5 doesn't leave much room for things poking into the side of the tube (like gearbox bolts or the caps for access holes) and we were worried about rubbing the sides of the tubes.

Yeah, this sounds like a good option. Makes life a lot easier since we're not at the point where we can make our own gearboxes yet and all the Vex shifters are designed to easily mount onto a 2 in height frame member.