Complete integrated Future Shock headset assembly with a custom 45.8mm OD upper and 1.8" lower bearing equipped on various model road bikes .

• Upper Bearing: Future Shock - 45.8mm OD x 36.8mm ID x 6.5mm Thick (45x45 degree)
• Lower Bearing: 1.8" - 56.8mm OD x 47.8mm 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).

Where Used

2026 Vado SL 2 LTD S-Racing
2026 Turbo Vado SL 2 5.0 Step-Through
2026 Turbo Vado SL 2 5.0
2026 Turbo Vado SL 2 4.0 Step-Through 
2026 Turbo Vado SL 2 4.0
2026 Turbo Creo 2 Expert - Shimano GRX Di2
2026 S-Works Turbo Creo 2 - SRAM RED / XX1 Eagle AXS
2026 S-Works Roubaix SL8 – SRAM RED AXS
2026 S-Works Roubaix SL8 LTD: Red Bull - BORA - hansgrohe Edition
2026 S-Works Roubaix SL8 - Shimano Dura-Ace Di2
2026 Roubaix SL8 Sport - Shimano 105
2026 Roubaix SL8 Pro - SRAM Force AXS 
2026 Roubaix SL8 Expert - Shimano Ultegra Di2
2026 Roubaix SL8 Comp - Shimano 105 Di2
2026 Roubaix SL8 Comp - SRAM Rival AXS  
2026 Roubaix SL8 - Shimano Tiagra
2026 Diverge 4 Sport Carbon - Shimano GRX 600
2026 Diverge 4 Sport Alloy - Shimano CUES
2026 Diverge 4 Pro - SRAM Force XPLR
2026 Diverge 4 Pro LTD - SRAM RED XPLR
2026 Diverge 4 Expert - Shimano GRX Di2
2026 Diverge 4 Expert - SRAM Rival XPLR
2026 Diverge 4 Comp Carbon - SRAM Apex AXS/S1000
2026 Diverge 4 Comp Alloy - SRAM Apex
2025 Turbo Vado SL 2 Carbon LTD - Forward 50 Collection
2025 Turbo Vado SL 2 6.0 EQ Carbon
2025 Turbo Vado SL 2 6.0 Carbon
2025 Turbo Creo 2 Expert - SRAM Rival / GX Eagle AXS
2025 Turbo Creo 2 Expert - SRAM Rival / GX Eagle AXS
2025 Turbo Creo 2 Comp - SRAM Apex / X1 Eagle AXS
2025 Turbo Creo 2 Comp - SRAM Apex / X1 Eagle AXS
2025 S-Works Turbo Creo 2 - SRAM RED / XX1 Eagle AXS
2025 S-Works Turbo Creo 2 - SRAM RED / XX1 Eagle AXS
2025 S-Works Roubaix SL8 – SRAM RED AXS
2025 S-Works Roubaix SL8 Frameset - FACT 12R Carbon
2025 S-Works Roubaix SL8 - Shimano Dura-Ace Di2
2025 Roubaix SL8 Sport - Shimano 105
2025 Roubaix SL8 Sport - SRAM Apex
2025 Roubaix SL8 Pro - Shimano Ultegra Di2
2025 Roubaix SL8 Expert - SRAM Rival eTAP AXS
2025 Roubaix SL8 Comp - Shimano 105 Di2
2025 Roubaix SL8 - Shimano Tiagra
2024 Turbo Creo 2 Expert - SRAM Rival / GX Eagle AXS
2024 Turbo Creo 2 Comp - SRAM Apex / X1 Eagle AXS
2024 S-Works Turbo Creo 2 - SRAM RED / XX1 Eagle AXS
2024 S-Works Roubaix SL8 LTD – SRAM RED AXS
2024 S-Works Roubaix SL8 Frameset - FACT 12R Carbon
2024 S-Works Roubaix SL8 - SRAM RED AXS
2024 S-Works Roubaix SL8 - SRAM RED AXS
2024 S-Works Roubaix - Warranty Frame
2024 Roubaix SL8 Sport - Shimano 105
2024 Roubaix SL8 Sport - Shimano 105
2024 Roubaix SL8 Sport - SRAM Apex XPLR AXS
2024 Roubaix SL8 Pro - Warranty Frame
2024 Roubaix SL8 Pro
2024 Roubaix SL8 Expert - SRAM Rival eTAP AXS
2024 Roubaix SL8 Comp - Shimano 105
2024 Roubaix SL8 Comp - Shimano 105
2024 Roubaix SL8 - Shimano Tiagra
2024 Roubaix SL8 - Shimano Tiagra
2023 Turbo Creo 2 Expert
2023 Turbo Creo 2 Comp
2023 S-Works Turbo Creo 2