Wolf Tooth Headset

ZS44 refers to a ZeroStack headset with a 44mm internal frame cup diameter, while 28.6 indicates it is designed for a standard 1 1/8-inch straight steerer tube. This is a common specification for many mountain and road bike frames.

The 6mm stack height is considered a low-profile design, which helps keep your front end height down. It is ideal if you are trying to achieve a more aggressive, lower handlebar position without needing to remove spacers or change your stem.

Yes, the Enduro bearings are high-quality and designed for longevity, but they are also serviceable. Because they use dual-lip seals and high-pressure waterproof grease, they are highly resistant to contamination, but you can clean and re-grease them if necessary to extend their lifespan.

Absolutely. The dual-lip seals are specifically engineered to ride in micro-grooves, creating a tight barrier that effectively blocks out water, grit, and mud. Combined with the high-pressure waterproof lubricant, this headset is built to withstand harsh, all-weather riding.

Aircraft-grade aluminum provides an excellent strength-to-weight ratio. It ensures the headset cups are rigid enough to maintain precise alignment under stress while keeping the overall weight of your bike's front end as low as possible.