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Headset FSA NO.55R/558 1.5 ACR Retrofit w/TH-874-1 B1
−18%
In stock
FSA

Headset FSA NO.55R/558 1.5 ACR Retrofit w/TH-874-1 B1

FSA NO.55R/558 1.5 ACR Retrofit headset for 55.8 mm head tubes, featuring ACR cable routing, angular contact bearings and tapered fork compatibility.

69,90 €85 €You save 15,10 €
Price includes VAT 24% (delivery: Estonia).
Availability: in store (Saku 3, Tallinn)
Product code: 130-0022000010
Free delivery within Estonia
14-day returns
Secure payment
29 years of experience
Advice by phone

Overview

Headset FSA NO.55R/558 1.5 ACR Retrofit

The FSA NO.55R/558 1.5 ACR Retrofit headset is designed for frames with a 55.8 mm outer diameter head tube. Featuring FSA’s ACR (Advanced Cable Routing) system, it provides a clean and integrated cockpit solution for road, MTB, gravel and cyclocross bikes.

This headset uses angular contact bearings with black seals for smooth steering performance and long-term durability. It includes a durable alloy top cover and is compatible with 1-1/8" to 1.5" tapered forks.

FSA ACR technology allows streamlined cable management while retaining a standard stem, making it an ideal upgrade for ACR-ready frames.

  • Type: ACR retrofit headset
  • Head tube: 1.5", 55.8 mm OD
  • Fork compatibility: 1-1/8" to 1.5" tapered
  • Bearings: angular contact ACB
  • Bearing angles: 36° / 45°
  • Top cover: alloy
  • Cable routing: external
  • Stack height: 6.5 + 0.5 = 7 mm
  • Weight: 101.4 g