FSA headset NO.55R 1.5/ACR | IS52/28.6 - IS52/40
The FSA NO.55R 1.5"/ACR headset is suitable for internal cable routing with an exit below the stem. The lower fork cone is made of high-quality aluminum just like the upper clamping cone. It is a special headset for frames with an outer diameter of 55.8 mm on the head tube and tapered 1.5" lower diameter / 1 1/8" upper diameter steerers.
A special ACR-compatible frame is required to use the headset.
ACR - Aero Cable Routing
This system runs your brake lines and Bowden cables completely invisibly through the frame.
Material: steel, aluminum
Design: Ahead, IS
Steerer tube: 1 1/8" to 1.5" tapered
SHIS upper part: IS52/28.6
SHIS base: IS52/40
Press-in dimension above Ø: 52 mm
Press-in dimension below Ø: 52 mm
Outer Diameter Top: 55.8mm
Bottom Outer Diameter: 55.8mm
Overall height at top: 10.4 mm
Overall height below: 0.5 mm
Bearing : Angular ball bearing - 36°/45° ACB
Colour: silver, matt black
Weight according to the manufacturer: 92g
Weight weighed: 125.7g
Scope of delivery: 1x FSA headset NO.55R 1.5/ACR | IS52/28.6 - IS52/40