The folding axle spring provides controlled preload across the folding hinge to maintain consistent clamp force and prevent unwanted play during operation. Designed for precision engagement, the part optimizes folding repeatability and reduces lateral movement at the joint on Gamme Booster electric scooter models. Manufactured from heat-treated spring steel for fatigue resistance and stable elastic properties, the element is suited for tight tolerances and repeated cycles. Installation aligns with the hinge bore and secures with the factory axle retention method to preserve geometry and safe folding action. Compatible Models: Gamme Booster .faq-accordion { max-width: 900px; margin: 40px auto; } .faq-item { border-bottom: 1px solid #ddd; } .faq-item input { display: none; } .faq-item label { display: flex; justify-content: space-between; align-items: center; padding: 16px; cursor: pointer; font-weight: 600; background: #f9f9f9; } .faq-item label::after { content: "+"; font-size: 22px; transition: transform 0.3s ease; } .faq-item input:checked + label::after { content: "−"; } .faq-content { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; padding: 0 16px; } .faq-item input:checked ~ .faq-content { max-height: 500px; padding-bottom: 16px; } .faq-content p { margin: 12px 0; } Shipping France Standard: €8.99 (Free over €149) Delivery time: 3–5 working days France (Express) Price: €12.99 Delivery time: 2–3 working days Europe & International From €11.99 Delivery time: 3–7 working days Price & eligibility calculated at checkout Please confirm compatibility with your electric scooter model before ordering to avoid installation issues.