Wolf Tooth Headset EC34 Upper

EC34 stands for External Cup with a 34mm head tube inner diameter. This means the headset cups sit outside the head tube rather than being pressed inside, which is a common standard for many mountain and road bike frames.

Yes, this headset is designed specifically for a 28.6mm (1 1/8-inch) steerer tube. It is a standard size for many traditional bike builds.

Stainless steel bearings offer superior resistance to corrosion and rust compared to standard steel. This makes them an excellent choice if you ride in wet, muddy, or salty conditions where moisture can compromise headset performance.

This upper assembly has a stack height of 16mm. You should factor this into your total stack height calculation when determining your stem position and steerer tube length.

This is an upper headset assembly, so its compatibility depends on your frame and the lower headset cup you choose. While it fits a 1 1/8-inch steerer, you must ensure your frame's lower head tube diameter and your fork's crown race are compatible with your specific setup.