What headset does a Trek Madone SLR Gen 8 (2024 on) use?
The headset fitment standard on a Trek Madone SLR Gen 8 (2024 on), and how to pick the right part.
This frame's fitment
| Frame | Trek Madone SLR Gen 8 (2024 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 Trek Madone SLR Gen 8 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 Madone uses a proprietary aero post; confirm the exact Trek part. The bottom bracket is a threaded T47 shell, covered on its own page.
The part to buy
Search Amazon for IS42 for your Trek Madone SLR Gen 8 (2024 on)affiliate searchFind IS42 for your Trek Madone SLR Gen 8 (2024 on) on eBayaffiliate
Related fitment pages
IS42integrated, 42 mmBottom bracket for Trek Madone SLR Gen 8 (2024 on)same frame, BB shellSeatpost diameter on a Trek Madone SLR Gen 8 (2024 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