Wolf Tooth Components Upper Headset

This refers to the headset standard: 'IS' stands for Integrated, '41' is the outer diameter of the bearing in millimeters, and '28.6' is the steerer tube diameter in millimeters (standard 1 1/8 inch). You should verify your frame's head tube specifications to ensure this matches your bike's requirements.

It is specifically designed for harsh environments. The bearings are packed with high-pressure waterproof lubricant and protected by dual-lip seals that sit in micro-grooves, which effectively block out water, grit, and sweat.

Enduro bearings are widely regarded for their durability and smooth operation. This specific model utilizes the largest possible ball size within the bearing race, which increases load capacity and longevity compared to standard headset bearings.

The 7mm stack height is the vertical space the headset occupies on your steerer tube. If you are replacing an existing headset, you should ensure this height matches your current setup or account for it when adjusting your stem spacers to maintain your handlebar position.

Yes, this is an integrated headset, meaning the bearings drop directly into the bearing seats machined into your frame's head tube. As long as your frame is designed for an IS41 upper headset, it will be compatible regardless of whether the frame material is carbon, aluminum, or steel.