Spcialized Pro Alloy superlight 1″ threaded headset from the early 90s as OEM on the ’92 StumpJumper FS and Comp (and available as a separate upgrade). Available in various sizes this is the standard British/ISO thread version for 1″ threaded forks. Made in Japan with 7000 series alloy cups this is a very nicely finished product.
- Model: Pro Alloy
- For 1″ BSC/ISO threaded steerers
- 30.2mm diameter cup / 26.4mm diameter crown race
- 35mm stack height
- Weighs 99 grams
- Made in Japan