Promax Headset Spacer Kit

These spacers are designed for standard 1 1/8-inch threadless steerer tubes, which is the most common size for modern mountain and road bikes. If your bike uses a tapered or straight 1 1/8-inch steerer, these will fit perfectly.

The kit includes five spacers in total, providing a combined stack height of 20mm. You get two 1mm spacers, one 3mm spacer, one 5mm spacer, and one 10mm spacer, allowing for precise adjustments to your handlebar height.

Yes, they are machined from 6061-T6 aluminum, which is a high-strength alloy commonly used in cycling components. They are built to withstand the vibrations and stresses of trail riding while remaining lightweight.

You don't need specialized tools for the spacers themselves, but you will need standard hex keys to loosen your stem bolts and remove the top cap. Ensure you have a torque wrench handy to properly tighten your stem bolts to the manufacturer's recommended specifications after adjusting your stack height.

The anodized finish is specifically applied to resist corrosion and wear from the elements. While it is highly durable, it may show minor surface scratches over many years of use, but it will not rust or degrade like steel or lower-quality materials.