Head set assembly + Top cap - Lower & Upper for Felt VR ADV 2025-2026

The Felt VR Advanced utilizes an IS (Integrated System) headset with a No.42 standard, specifically designed for frames with a 1.125" to 1.5" tapered head tube. This configuration includes:

• Upper bearing: 41.8mm outer diameter (OD) x 30.5mm inner diameter (ID), 45°/45° angular contact ball (ACB)

• Lower bearing: 51.8mm OD x 40mm ID, 36°/45° ACB

• Top Cap: Specific for Felt VR ADV 2025 & 2026 models included 

These bearings are sealed cartridge types, offering durability and smooth performance.