Bike Computer Handlebar Spacer Washers 25.4 & 31.8mm – 4pcs

Bike Computer Handlebar Spacer Washers – 25.4mm & 31.8mm (4-Pack)

Keep your GPS computer or cycling device mounted securely with these precision-fit handlebar adapter spacer washers. Designed for cyclists who want a clean, rattle-free front mount, this 4-piece set bridges the gap between standard 25.4mm and oversized 31.8mm handlebars — so your computer sits perfectly no matter what bar diameter you're running.

Key Features

• 4-Piece Set: Includes 2x 25.4mm spacer washers and 2x 31.8mm spacer washers for maximum compatibility
• Universal Handlebar Fit: Converts 25.4mm to 31.8mm aperture — works with both road and MTB handlebar widths
• Durable Plastic Construction: Lightweight, corrosion-resistant black plastic that won't add unnecessary weight to your setup
• Broad Device Compatibility: Suitable for Garmin, Blackbird, and Xingzhe computer mounts with front-mount adapter systems
• Secure Front Mount: Ensures your bike computer sits flush and stable on the handlebar gasket adapter
• Neat Black Finish: Blends seamlessly with most cockpit setups for a clean, professional look

Specifications

Package Contents

• 2 × 25.4mm Handlebar Spacer Washers
• 2 × 31.8mm Handlebar Spacer Washers

Please Note

• Actual color may vary slightly from product images due to monitor brightness and lighting conditions.
• Please allow slight manual measurement deviations (±1mm).

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For more information on cycling safety and equipment standards, visit the U.S. Consumer Product Safety Commission (CPSC) Bicycle Safety Guide.

Learn more: Bicycle handlebar

Frequently Asked Questions

Q: What handlebar sizes do these spacer washers fit?

A: This 4-piece set includes both 25.4mm and 31.8mm handlebar spacer washers (2 of each), covering the two most common road and mountain bike handlebar diameters. They act as aperture adjustment adapters so your bike computer mount fits securely on either bar size.

Q: Are these washers compatible with Garmin bike computers?

A: Yes! These handlebar gasket adapter washers are designed to be compatible with Garmin, Blackbird, and Xingzhe front-mount bike computer systems, allowing you to convert your handlebar diameter for a snug, stable fit.

Q: What material are these spacer washers made from?

A: The spacer washers are made from durable, lightweight black plastic. This material is corrosion-resistant and ideal for outdoor cycling use, holding up well against moisture and UV exposure over time.

Q: Will these washers work on both road bikes and mountain bikes?

A: Yes. The two included sizes — 25.4mm (common on older road and city bikes) and 31.8mm (standard on modern road and mountain bikes) — cover a wide range of bicycle types, making these spacers highly versatile for most cycling setups.