The Orbit ITA headset is designed to fit into a zero stack (44mm ID/50mm OD) head tube while using a tapered steerer.
This will fit a fork with a tapered steerer (1 1/8th-1.5 Inch) into a frame that has a straight 44mm inner diameter headtube. The top cup is a "zero stack" so the bearing sits inside the frame, the bottom cup is external, so the bearing sits outside the frame.
- 1.5in / 1-1/8in, 36 degrees/ 45 degrees ACB
- Fits 1-1/8in head tube and 1-1/8in to 1.5in tapered fork
- Fits tapered fork to standard 50mm OD head tube (44mm inner diameter)
- Upper: 36 degrees/ 45 degrees ACB (blue seal)
- Lower: 1.5in 36 degrees/ 45 degrees ACB (black seal)
- Stainless crown race
- Stack Height: 30.3mm
- Weight: 129g