PRO STEM - KORYAK E: High - performance 45mm stem with 0 - degree angle in sleek black color, 35mm clamp

To use this stem, first make sure your bike is on a stable surface. Loosen the bolts on the stem, slide it onto the steerer tube of your bike's fork, and align it properly. Tighten the bolts evenly. When riding, avoid hitting hard objects with the stem to prevent damage. For maintenance, regularly check the tightness of the bolts and clean the stem with a mild cleaner and a soft cloth. Keep it dry to avoid rusting.