Avian Carbon Tapered Integrated Headset-1 1/8" to 1.5" bb-86-92 grooved slick tread to improve

grooved slick tread to improve puncture and tear resistance

Aluminum cover

75" (fits tires from 20x1

Deep V for added strength

Avian Carbon Tapered Integrated Headset-1 1/8" to 1.5" bb-86-92 grooved slick tread to improveThe Avian Tapered Integrated Headset is designed for the newer, higher end pro sized frames that utilize a tapered head tube design with a 1 1 8" top bearing and a 1. 5" lower bearing. The headsets are available in two carbon top cover options, 8mm and 18mm. Some riders like a low front end and others like higher front ends, this option helps you adjust without the use of tacky looking spacers. All of the Avian headsets come with split bearing races