1940 Elgin Parts List https://vintageamericanbicycles.com/index.php/1940-elgin-parts-list/

Ball Bearing Chart https://vintageamericanbicycles.com/index.php/ball-bearing-chart/

Wheel Truing https://vintageamericanbicycles.com/index.php/wheel-truing/

Columbia Fork Lock https://vintageamericanbicycles.com/index.php/columbia-fork-lock/