Ritchey 1 1/8-inch steerer tube compressor for steerer tubes with an internal diameter of 22.5 mm
The Compressor headset clamp for forks with a 22.5 mm steerer tube inner diameter
Herstellerinformation: RITCHEY, Via Angelo Maspoli 21, 6850 Mendrisio, Ticino, Switzerland, http://ritcheylogic.com | EU contact: Cosmic Sports, Leyher Strasse 47, 90763 Fürth, Germany, https://cosmicsports.de