[brennerator]

Im one of the engineers on this project.

So first of all one of the sprockets on the gearbox (yes there are two; the black one and our lazy CADDED silver one) drives the back wheel. The other sprocket drives the middle wheel. The middle wheel then drives the front wheel. This assembly worked last year; my only concern is the tension on the cantilevered axels.

Second: as to the question of eclips or spacers, last year we used shaft collars to space things out; this year we are looking for a more effective spacer. The spacer will be used ON the axel on the front and back axels to align the sprocket. The question was phrased incorrectly.

Third: the hubs are custom made.

Fourth: our frame is made of aluminum tubing .125" thick. Therefore i do not know if we can make a slot to lock down the pillowblock bearing (off the shelf). We were thinking of using different material to make our chassis out of, but we had some success with this tubing last year. Can anybody offer insight on what material we should use?

Last year we used a suitable tensioner that fixed right onto the chain.

We are using the 1" thick 6" IFI traction wheels. The thinner width should help lower the cantilever force, while the size will preserve the gear ratio. Please note that the sprockets are CADDDED as juxtaposed discs. The gear ratio has been calculated correctly however.

We are more concerned about structural aspects since our chassis drivetrain worked fine last year, but our chassis got physically damaged in the 3rd round.