Origin8 Fusion Compression Plug

This plug is designed for standard 1-1/8 inch carbon steerer tubes with an internal diameter ranging from 22mm to 25mm. Before purchasing, verify your fork's specific internal diameter to ensure a proper fit.

The extra-long 90mm design provides deeper reinforcement inside the steerer tube, specifically supporting the area clamped by the stem. This added length helps distribute stress more evenly, which is critical for preventing structural damage to lightweight carbon components.

Yes, the three-piece expander design is engineered to apply uniform pressure against the inner walls of the steerer tube. This ensures a more secure and stable fit compared to simpler, single-wedge designs, reducing the risk of the headset loosening over time.

While this plug is specifically engineered for the delicate needs of carbon, it will technically function in a metal steerer tube of the same diameter. However, it is optimized for carbon, so you may find more cost-effective options designed specifically for aluminum or steel steerers.

You will need a standard hex key to tighten the stainless steel bolt. Because this is a compression plug, ensure you have a torque wrench handy to avoid overtightening and damaging your carbon steerer.