Surly Front Thru-Axle

While it fits 12mm diameter hubs, it is specifically engineered for frames requiring 110mm hub spacing. You must verify that your frame and fork are designed for this specific spacing and thread pitch before purchasing.

Because this uses a bolted design rather than a quick-release lever, you will need a standard hex key to tighten it. This design helps keep the profile low and secure, but it does mean you cannot remove the wheel tool-free.

Surly uses chromoly steel to prioritize structural integrity and durability. While it is slightly heavier than an aluminum equivalent, the material choice ensures a robust connection that can withstand the rigors of daily riding and rougher terrain.

Compatibility is determined by three key measurements: the axle diameter (12mm), the hub spacing (110mm), and the thread pitch (M6x1.0). If your frame's specifications do not match these exact numbers, this axle will not fit properly.

The primary benefit is a cleaner, low-profile aesthetic that sits flush with your fork. It also provides a very secure, consistent clamping force that is less prone to accidental loosening compared to some lever-based systems.