Complete integrated Future Shock headset assembly with a custom 45.8mm OD upper and lower bearing eqiupped on various model road and active bikes .
- Upper Bearing: 45.8mm OD x 36.8mm ID x 6.5mm Thick (45x45 degree).
- Lower Bearing: 45.8mm OD x 36.8mm ID x 6.5mm Thick (45x45 degree).
- Complete T73 Future Shock collar assembly (same as S192500018).
- Split upper bearing compression ring.
- 5mm Future Shock cartridge spacers (3 pcs).