exemples de longjohns autoconstruits sans tubes rectangulaires:
* [http://www.instructables.com/id/2-Wheeled-Cargo-Bike-from-old-mountain-bike-frame/?ALLSTEPS 2 Wheeled Cargo Bike from old mountain bike frame by nthomas12]* [http://www.instructables.com/id/build-a-2-wheel-cargo-bike/?ALLSTEPS build a 2-wheel cargo bike by carkat]
* http://www.primateframes.com.au/2013/02/bens-big-cargo-bike/, photos d'un autre modèle du même créateur: [http://www.primateframes.com.au/wp-content/gallery/gallery/cargo_04.jpg], [http://www.primateframes.com.au/wp-content/gallery/gallery/cargo_03.jpg], [http://www.primateframes.com.au/wp-content/gallery/gallery/cargo_02.jpg], [http://www.primateframes.com.au/wp-content/gallery/gallery/cargo_01.jpg].