BUCKLOS 11PCS Bike Headset Spacers 28.6mm 1-1/8" MTB Aluminum

BUCKLOS 11-Piece Bicycle Headset Fork Stem Spacer Set — 28.6mm / 1-1/8"

Upgrade your bike's handling and aesthetics with the BUCKLOS 11PCS Aluminum Alloy Headset Spacer Set. Engineered for precision fit, this complete spacer kit gives you everything needed to fine-tune your fork stem height on mountain bikes, road bikes, BMX, and more — all in one convenient package.

Made in Mainland China.

What's in the Box

This kit includes 11 spacers across 6 sizes so you always have the right combination on hand:

• 3 × 2mm
• 2 × 3mm
• 2 × 5mm
• 2 × 10mm
• 1 × 15mm
• 1 × 20mm

Total weight: approx. 31.8g for all 11 pieces — ultralight and ride-ready.

Key Features

• Universal 1-1/8" (28.6mm) Inner Diameter — compatible with the vast majority of modern MTB, road, and BMX forks
• Forged Aluminum Alloy Construction — excellent temperature resistance and impact resistance for long-lasting durability
• CNC Smooth Edges & Fine Texture — automatic cutting technology delivers clean, burr-free edges for a professional finish
• Tapered Lightweight Design — unique taper reduces gasket thickness while maintaining strength and compression resistance, saving up to 40% weight vs. conventional aluminum spacers
• Wide Compatibility — suitable for mountain bikes, road bikes, BMX, and other bikes with a 1-1/8" steerer tube

Technical Specifications

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Frequently Asked Questions

Q: What bike types are these 28.6mm headset spacers compatible with?

A: These BUCKLOS headset spacers are compatible with any bike featuring a standard 1-1/8" (28.6mm) steerer tube, including mountain bikes (MTB), road bikes, and BMX bikes. Always verify your fork's steerer tube diameter before purchasing.

Q: How many spacers come in this set and what sizes are included?

A: The set includes 11 aluminum alloy spacers in 6 different heights: 3 × 2mm, 2 × 3mm, 2 × 5mm, 2 × 10mm, 1 × 15mm, and 1 × 20mm. This variety lets you mix and match to achieve your ideal handlebar height and stem position.

Q: Are these spacers durable enough for trail and off-road riding?

A: Yes. The spacers are made from forged aluminum alloy using CNC cutting technology, providing smooth edges, strong compression resistance, and excellent impact durability — making them well-suited for both everyday commuting and demanding off-road trail conditions.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.