Acros AZX-539F ZS44/28.6 - EC44/40 headset
Product Description
AZX-539F ZS44/28.6 - EC44/40 headset by Acros
The AZX-539F ZS44/28.6 - EC44/40 Headset by Acros is built for Gravel and MTB use and gives your bike the right interface for a tapered 1 1/8" - 1.5" fork steerer. With its ZS44 upper and EC44 lower headset design, it suits frames that combine Semi-Integrated and External Cup standards. The upper inner diameter is 28.6 mm, while the lower inner diameter is 40 mm for a precise fit at the fork and frame. Both the upper and lower outer diameter measure 44 mm, matching the specified frame interfaces. The aluminium cap adds a clean, durable finish to the setup. If you're rebuilding a frame or dialing in a fresh front end, this headset brings together the key dimensions for a solid match. It is a practical choice for riders who want dependable compatibility for modern tapered MTB or gravel builds.
OEM Packaging:
Product Specifications:
- Fork Steerer:
- 1 1/8" - 1,5" tapered
- Upper Outer Diameter:
- 44 mm
- Lower Outer Diameter:
- 44 mm
- Upper Inner Diameter:
- 28,6 mm
- Lower Inner Diameter:
- 40 mm
- Headset Design:
- External Cup (EC), Semi-Integrated (ZS)
- Application:
- Gravel, MTB
Technical Information:
- Cap:
- Aluminium
Product Features:
- Tapered gravel and MTB headset for 1 1/8" to 1.5" fork steerers, built for smooth and reliable front-end performance
- ZS44/28.6 upper and EC44/40 lower configuration for compatible frames with 44 mm upper and lower outer diameter
- Semi-integrated upper cup with external lower cup combines secure fit and proven headset setup
- 28.6 mm upper inner diameter and 40 mm lower inner diameter matched to tapered steerer standards
- Aluminium top cap adds a durable, clean finishing touch to the cockpit setup
Manufacturer Number:
- schwarz: 310.02.539F
Contents:
• 1 x Acros AZX-539F ZS44/28.6 - EC44/40 headset
Manufacturer:
Benzstraße 58
71272 Renningen
Germany
info@acros-components.com










