JOYOR S5-Z Brake Disc 120mm

The JOYOR S5-Z Brake Disc 120mm is a genuine replacement front or rear brake rotor designed specifically for the JOYOR S5Z electric scooter. It mounts directly to the wheel hub and works with the hydraulic disc brake caliper to provide consistent, responsive stopping power. This 120mm diameter disc is precision-machined for optimal heat dissipation and braking performance under normal riding conditions.

Replace this brake disc when it shows signs of excessive wear, deep grooves, warping, or cracking — typically after prolonged use or following impact damage. It’s also recommended to replace the disc when upgrading brake pads or if braking performance has noticeably declined despite pad replacement.

This is an authentic JOYOR OEM part (Spec Code: BD-STY) engineered for direct fit and full compatibility with the S5Z model — no modifications required.