Chunky and solid steel Ofmega 1″ JIS threaded headset in polished silver – ideal for a 1980s ATB or tourer. JIS spec headsets differ from normal 1″ threaded headsets in that the cups are 30.2 mm in diameter (and hence headtubes are narrower) and the crown race is over-sized at 27.0 mm.
- 1″ JIS BSC / ISO thread for 25.4 mm steerer tubes
- Weighs 161 grams
- Stack height: 42 mm
- Crown race: 27.0 mm
- Cup diameter: 30.2 mm
- Made in Italy