Wolf Tooth Headset ZS44

ZS44 stands for Zero Stack with a 44mm head tube inner diameter. This means the headset cups sit inside the frame rather than resting on top, resulting in a cleaner, lower-profile look and a slightly lower front end.

Yes, this headset is specifically designed for a standard 1.125-inch (1-1/8 inch) straight steerer tube. It is not compatible with tapered steerer tubes.

Stainless steel bearings are significantly more resistant to corrosion than standard steel, which is a major advantage if you ride in wet, muddy, or salty conditions. Combined with the sealed design, this headset requires much less frequent cleaning and regreasing to keep the steering smooth.

No, this product is the upper headset assembly only. You will need to purchase a compatible lower headset assembly separately to complete your bike's steering system.

The upper stack height is 6 mm. Because this is a very low-profile design, it is unlikely to significantly alter your bike's geometry, but it is a good measurement to keep in mind if you are trying to fine-tune your handlebar height.