What headset does a Cervelo S5 Disc (2020 on) use?
The headset fitment standard on a Cervelo S5 Disc (2020 on), and how to pick the right part.
This frame's fitment
| Frame | Cervelo S5 Disc (2020 on) |
|---|---|
| Headset standard | IS42 (integrated, 42 mm) |
| Cup / bearing outside diameter | 41.8 to 42.0 mm bearing outside diameter |
| Steerer diameter | 28.6 mm (1 1/8 in) |
The Cervelo S5 Disc uses an integrated IS42 upper headset, a class 27.2 mm seatpost interface, a 12x100 front thru-axle and a braze-on front derailleur.
The S5 uses a proprietary aero post, so the 27.2 mm figure is the class default. The bottom bracket is a BBRight press-fit shell, covered on its own page.
The part to buy
Search Amazon for IS42 for your Cervelo S5 Disc (2020 on)affiliate searchFind IS42 for your Cervelo S5 Disc (2020 on) on eBayaffiliate
Related fitment pages
IS42integrated, 42 mmBottom bracket for Cervelo S5 Disc (2020 on)same frame, BB shellSeatpost diameter on a Cervelo S5 Disc (2020 on)same frameIS42 on a Trek Emonda SLR (2024 on)same standard, another frame
SOURCES: Park Tool, Standardized Headset Identification System (SHIS) · BikeGremlin, Bicycle headset bearing standards (SHIS) · BikeRadar, Road bike axle standards: the complete guide