Wolf Tooth Compression Plug

Wolf Tooth Compression Plug Info

Wolf Tooth Compression Plug provides a secure anchor point for setting proper headset preload on bikes equipped with carbon steerer tubes. Whether you're building a road, gravel, or mountain bike, using a compression (expander) plug instead of a star nut is critical when working with carbon forks.

Designed specifically for 1 1/8" steerer tubes, this compression plug expands inside the steerer to create a stable preload interface for your stem cap and top cap bolt. Unlike star nuts, which can damage carbon steerers, the Wolf Tooth Compression Plug distributes pressure internally to protect the fork structure while delivering consistent headset adjustment.

Pair it with a Wolf Tooth stem cap to add a subtle color accent while maintaining a clean, performance-focused cockpit finish.

Compression Plug Specs at a Glance

• Steerer Compatibility: 1 1/8"
• Steerer Inner Diameter Range: 23.5mm – 24.5mm
• Designed For: Carbon steerer tubes (also compatible with metal steerers)
• Weight: 26g
• Insertion Depth: 28mm
• Expansion Bolt Torque: 5–7 Nm

Compatibility & Installation Notes

• Compatible with carbon and metal 1 1/8" steerer tubes within specified ID range.
• Never use a star nut in a carbon steerer tube.
• Install to proper insertion depth and tighten expansion bolt to recommended torque.

Design Benefits

1. Carbon-Safe Preload: Distributes force internally to protect carbon steerers.
2. Precise Headset Adjustment: Creates a stable anchor for accurate preload setting.
3. Lightweight Construction: Minimal added weight at the cockpit.
4. Versatile Fit: Compatible with a wide range of 1 1/8" steerer tubes.

Final Take

The Wolf Tooth Compression Plug is an essential component for any carbon steerer setup. Lightweight, secure, and easy to install, it ensures safe headset preload adjustment while protecting your fork—making it a critical finishing detail in any quality bike build.