Source google image: http://www.cyrilalmeras.com/event/2006/03-vtt-sur-neige-nuit-greoliere/IM6CA_-0512-roue-arriere-vtt-sur-neige.jpg
Roue velo vtt
Source google image: http://www.cyrilalmeras.com/event/2006/03-vtt-sur-neige-nuit-greoliere/IM6CA_-0512-roue-arriere-vtt-sur-neige.jpg