Wolf Tooth Headset

The EC34 stands for External Cup with a 34mm frame bore diameter, and 28.6 refers to the standard 1 1/8-inch steerer tube diameter. This headset is designed for frames with a traditional press-fit headtube, so ensure your frame measurements match these specs before purchasing.

Black oxide coating provides an extra layer of corrosion resistance, which is crucial for headset bearings that are frequently exposed to sweat, rain, and trail grime. It helps the bearings last longer and maintain smooth steering performance in harsh conditions.

No, this specific upper assembly is designed for a straight 1 1/8-inch steerer tube. If you are running a tapered fork, you will need a different lower headset assembly to accommodate the larger diameter at the crown race.

Yes, the 16mm stack height is the vertical space the headset occupies on your steerer tube. You should include this measurement when calculating your total stack height to ensure you have enough steerer tube length for your stem and any desired spacers.

Wolf Tooth designs their headsets for serviceability, so you can replace the cartridge bearings individually when they eventually wear out. You do not need to replace the entire aluminum cup assembly.