Syncros Stem Spacer/Top Cap

While these are precision-engineered for specific Syncros cross-country stems, they are designed to fit standard 1 1/8-inch steerer tubes. However, the exterior profile is optimized to integrate seamlessly with Syncros stem shapes, so they may not sit flush with stems from other brands.

The kit typically includes the top cap and the necessary spacers for height adjustment. It does not include the star nut or the stem bolt, as those are specific to your fork's steerer tube and stem requirements.

These components are specifically engineered for cross-country (XC) riding, where weight savings and precision are prioritized. While durable, they are not designed for the heavy-duty impacts associated with aggressive enduro or downhill riding.

Generic spacers often vary in tolerance, which can lead to creaking or inconsistent headset compression. These Syncros spacers offer tighter manufacturing tolerances, ensuring a secure, creak-free interface that maintains consistent steering responsiveness.

The number of spacers depends on your desired handlebar height and the length of your fork's steerer tube. It is best to install your stem first, measure the excess steerer tube length, and use the spacers to fill the gap between the headset cover and the stem, ensuring you leave a 2-3mm gap for proper compression.