Headset Part Acros Bearing Shell top Fiber Insert 103/113/133 HT (18-05600)

Headset Part Acros Bearing Shell top Fiber Insert 103/113/133 HT (18-05600)

The Acros Bearing Shell Top Fiber Insert is an original upper headset bearing shell designed for Acros head tube systems 103 / 113 / 133 HT, covering model years 2020–2025. It ensures precise bearing fit and smooth steering performance.

The fiber-reinforced construction helps reduce weight and dampen vibrations while maintaining the required stiffness and durability, making it ideal for modern carbon and high-end alloy frames.

As an original Acros spare part, it guarantees full compatibility and long-term reliability when used for servicing or replacement.

• Type: upper bearing shell
• System: Acros 103 / 113 / 133 HT
• Material: fiber-reinforced composite
• Part number: 18-05600
• Model years: 2020–2025