Changes
/* Moyeux arrières */
|-
| [https://www.sram.com/sram/urban/products/sram-e-matic SRAM E-matic], voir [http://www.pedelecforum.de/forum/index.php?threads/nabenmotoren-endlich-bergtauglich.26287/page-31], [http://www.pedelecforum.de/forum/index.php?threads/urban-beachcruiser-mit-sram-e-matic.26842/], [http://www.pedelecforum.de/forum/index.php?threads/sram-e-matic.25197/]
| un seul pignon et boite à vitesses automatique 2 vitesses (Dieu sait si c'est fiable... )
| ...
| ...
