CNC Aluminum Bike Stem Spacers 1-1/8″ Special Road MTB Headset Spacer Bicycle Fork Washer

Descrizione

What Are Bike Stem Spacers?

Bike stem spacers are small, cylindrical rings placed on a bicycle’s steerer tube (the part of the fork that extends through the head tube) to adjust the height of the handlebar stem. They help fine-tune riding posture by allowing riders to raise or lower their handlebars for optimal comfort and performance.

Specifications of Bike Stem Spacers

1. Materials:

   • Aluminum (lightweight and durable)

   • Carbon fiber (high-end, lightweight, vibration-damping)

   • Plastic/Polycarbonate (budget-friendly, corrosion-resistant)

   • Titanium (premium, ultra-lightweight, strong)

2. Surface Finishes:

   • Anodized (aluminum, colorful & corrosion-resistant)

   • Polished (smooth, aesthetic finish)

   • Matte (non-reflective, modern look)

   • Painted (custom colors, branding options)

3. Sizes & Dimensions:

   • Diameter: Typically 1-1/8″ (standard) or 1.5″ (oversized)

   • Height: Common sizes include 5mm, 10mm, 15mm, 20mm, and 30mm

   • Stackable: Multiple spacers can be combined for height adjustment

4. Applications:

   • Road bikes (for aerodynamic adjustments)

   • Mountain bikes (for better control on rough terrain)

   • Hybrid/commuter bikes (ergonomic comfort)

   • Gravel bikes (versatile positioning)

Excellent Case: Customizing Fit for a New Cyclist

Scenario: A beginner cyclist purchases a road bike but experiences neck and back strain due to an overly aggressive riding position.

Solution:

1. The bike mechanic adds three 10mm aluminum spacers under the stem to raise the handlebars by 30mm, reducing strain.

2. After a few rides, the cyclist feels more comfortable but wants slight refinement.

3. The mechanic replaces one 10mm spacer with a 5mm carbon fiber spacer (for vibration damping), fine-tuning the height to 25mm.

Result:

• The rider achieves a more upright, ergonomic position, eliminating discomfort.

• The lightweight spacers don’t add noticeable weight.

• The anodized black spacers blend seamlessly with the bike’s aesthetics.