JOYOR S10-S-Z Steering Stem Tightening Wrench

The JOYOR S10-S-Z Steering Stem Tightening Wrench is a precision tool designed specifically for adjusting and securing the steering stem on the JOYOR S10SZ electric scooter. It fits the headset assembly at the top of the front fork and ensures proper torque is applied to maintain safe, wobble-free steering performance. This wrench enables accurate tightening of the stem cap and preload adjustment without damaging threads or components.

Use this wrench when performing routine maintenance, after replacing headset bearings, or if you notice handlebar play or loose steering feel. Its custom shape matches the unique hex profile of the S10SZ’s stem cap, eliminating slippage and providing secure grip during adjustment. Unlike generic tools, it avoids rounding fasteners and supports long-term headset integrity.

This is a genuine JOYOR service tool engineered for direct compatibility with the S10SZ model — no modifications or adapters required.