Wolf Tooth Anodized Headset Spacers (Black, 3/5/10/15 mm) — 6061-T6 Lightweight Durable

These are precision-machined, anodized 6061-T6 aluminum headset spacers from Wolf Tooth in multiple thicknesses (3, 5, 10, 15 mm) to fine-tune stem height and improve cockpit fit.

Lightweight, durable, and finished in hard-anodized black, these spacers give a clean, reliable way to adjust handlebar height without cutting the steerer tube. Machined in the USA from bicycle-grade 6061-T6 aluminum, the set includes commonly used increments so you can dial in reach and stack in small, predictable steps. They also add a subtle finishing touch to the headset area while resisting corrosion and wear better than raw aluminum.

How do these headset spacers help me set up my cockpit?

Spacers let you raise or lower the stem to find the most comfortable and efficient riding position without altering the fork. Using increments of 3, 5, 10, and 15 mm lets you make both fine and larger adjustments, so you can refine handlebar height in precise steps. They maintain headset preload and keep the stack even for safe steering performance.

• Sizes included: 3 mm, 5 mm, 10 mm, 15 mm increments for flexible adjustments
• Thin-walled, consistent thickness avoids tilt or binding under load
• Preserves steerer tube integrity—no cutting or permanent changes

What materials and finish are used, and why does that matter?

These spacers are manufactured from 6061-T6 aluminum, a standard alloy for bicycle components known for its strength-to-weight balance. The black anodized finish increases surface hardness and corrosion resistance while giving a low-gloss, uniform look that matches most cockpits. Anodizing also reduces visible wear from installation and repeated adjustments.

• 6061-T6 aluminum: high strength with low weight for cycling parts
• Hard-anodized black: protects surfaces and provides consistent appearance
• Precision machining ensures tight tolerances and smooth stackability

Will these spacers fit my bike and headset system?

They are designed for standard bicycle steerers and common headset stack dimensions; compatibility depends on steerer diameter and headset design. Most road and mountain bikes using 1-1/8" steerers will accept these spacers, but verify your fork steerer diameter and internal clearance before ordering. Using the correct internal diameter and thickness avoids binding or movement in the headset stack.

• Intended for standard steerers commonly used on road and mountain bikes
• Check steerer diameter and headset type prior to installation
• Stackable—combine different sizes for custom height adjustments

How do I install and maintain these spacers for long life?

Installation is straightforward: slide the chosen spacers over the steerer above the headset and below the stem, set preload, and torque the top cap and stem bolts per manufacturer specs. Keep threads clean and use proper torque to prevent over-compression or loosening. Periodic inspection for movement and a quick wipe to remove dirt will maintain appearance and function.

• Slide onto steerer between headset and stem, then preload and torque correctly
• Inspect for movement after initial rides and re-torque if needed
• Wipe anodized surfaces to remove grit and avoid cosmetic abrasion

Who is this for: These Wolf Tooth spacers are aimed at cyclists—road, gravel, and mountain—who want precise, repeatable stem height adjustments and a durable, attractive finish. They suit builders, home mechanics, bike fitters, and riders upgrading components who need lightweight, reliable spacers made to tight tolerances in the USA.