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MY22B01 - 24_1.0_27.08.2021 28
Description
3.3.2 Châssis
Le châssis se compose de deux éléments :
cadre et
direction.
3.3.2.1 Cadre
Le cadre absorbe toutes les forces générées sur
le vélo électrique par le poids du corps, le
pédalage et le sol. Le cadre sert également de
support pour la plupart des composants.
La géométrie du cadre détermine le
comportement routier du vélo électrique.
3.3.2.2 Direction
Les composants de la direction sont :
Palier de direction,
Potence,
Guidon et
fourche.
3.3.2.3 Palier de direction
Le palier de direction (également appelé jeu de
direction) est le système de palier de la fourche
dans le cadre. On distingue deux types de paliers
de direction :
les paliers de direction conventionnels pour tubes
de fourche avec filetage et
les paliers de direction pour tubes de fourche
sans filetage, appelés Aheadsets.
3.3.2.4 Potence
La potence est l’élément d’assemblage entre le
guidon et le tube de la fourche. La potence sert à
adapter le guidon au cycliste. Elle permet de
régler la hauteur du guidon et la distance entre le
guidon et la selle (voir le chapitre 6.5.6).
Potences à réglage rapide
Les potences à réglage rapide sont un
prolongement de la tige de fourche. La hauteur et
l’angle des potences à réglage rapide peuvent
être réglés sans outils. Selon le modèle, il est
possible d’effectuer jusqu’à 3 réglages :
Illustration 4 : Exemple d'un BY.SCHULZ Speedlifter Twist
Pro SDS
1 réglage de la hauteur,
2 fonction Twist et
3 réglage de l’angle de la potence.
Le réglage de la hauteur et de l’angle de la
potence accroît le confort de conduite en
permettant d’adopter différentes positions lors
des trajets prolongés. La fonction Twist permet de
gagner de la place lors du stationnement.
Illustration 5 : Fonction Twist, exemple d'un BY.SCHULZ
2
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3
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