Compatible with SPECIALIZED TARMAC SL7 and SL8 headsets.
The number is ACB495H6 ACB495H6.5, please check carefully.
The outer diameter is 49.5mm, the inner diameter is 40.5mm, and the thickness is 6.5mm, ensuring tight installation without jamming.
The 45/45 degree contact angle design optimizes the radial and axial force performance, improves the control sensitivity and durability.
The bearings are made of bearing steel, which has wear resistance and corrosion resistance, and adapts to the high-frequency and high-load operation requirements of road riding.