FSA Orbit C-40-ACB 1.5 Headset (No.42/ACB) IS42 / IS52 Tapered Integrate Headset FSA Orbit C-40-ACB 1.5 Headset (No.42/ACB) IS42 / IS52 Tapered Integrate Headset

A combination of the other styles, tapered headsets will be used with a steerer tube that has a 1.1/8" or 1.5" lower diameter, and a 1.1/8" upper diameter. Headsets for such frames and forks can be any combination of traditional, internal, or integrated headsets. It is very important to accurately measure the inner diameter of the headtube top and bottom to narrow down the headset model needed. In some cases, tapered headtubes can be used with a straight 1.1/8" steerer tube if a reducing headset race is available for that headset.

Features:

Steerer Tube OD: 1.1/8" to 1.5" tapered

Upper Headtube ID: 42mm

Lower Headtube ID: 52mm

Fork crown seat OD: 39.8mm

Stack height: 8.9mm

Angular Contact Bearings

A combination of the other styles, tapered headsets will be used with a steerer tube that has a 1.1/8" or 1.5" lower diameter, and a 1.1/8" upper diameter. Headsets for such frames and forks can be any combination of traditional, internal, or integrated headsets. It is very important to accurately measure the inner diameter of the headtube top and bottom to narrow down the headset model needed. In some cases, tapered headtubes can be used with a straight 1.1/8" steerer tube if a reducing headset race is available for that headset.

Features:

Steerer Tube OD: 1.1/8" to 1.5" tapered

Upper Headtube ID: 42mm

Lower Headtube ID: 52mm

Fork crown seat OD: 39.8mm

Stack height: 8.9mm

Angular Contact Bearings