Aluminum housing tube welded inside the bottom tube of a canondale mountain bike frame.

Aluminum housing tube welded inside the bottom tube of a canondale mountain bike frame.

Aluminum housing tube welded inside the bottom tube of a canondale mountain bike frame.

Four 2in tube sections were welded to the chair creating the attachment points. Two on this side, two on the other.
De-railer and 2 chains salvaged from donor bicycle. Two chains were combined into one long chain. De-railer was re-adjusted once attached to the front bicycle fork, allowing for shifting through all 7 gears.