Specialized FSA No.42 Tapered Headset 1-1/8 to 1.5 OEM MTB

Specialized FSA No.42 Integrated Tapered Headset – 1-1/8" to 1.5"

This genuine Specialized factory replacement integrated headset is built around the FSA Headset No.42, designed for tapered mountain bike and e-MTB frames using a 1-1/8" upper and 1.5" lower steerer. The kit includes all required components for a complete headset replacement, ensuring smooth steering, proper bearing preload, and factory-correct fitment. Ideal for headset service, frame rebuilds, or restoring OEM performance on compatible Specialized mountain and electric mountain bikes.

Included Components

• Top Cover

  • Diameter: 45.5mm

  • Style: “Hella Flush” low-profile

  • Part Ref: H2387

• Upper Bearing (1-1/8")

  • Dimensions: 41.8mm OD × 30.5mm ID × 8mm thick

  • Interface: Campy Style 45×45°

• Lower Bearing (1.5")

  • Dimensions: 52mm OD × 40mm ID × 7mm thick

  • Interface: Campy Style 45×45°

• Split Alloy Compression Ring

• Split Alloy 1.5" Crown Race

• 1-1/8" Micro Shim

Features & Benefits

• Genuine Specialized OEM replacement headset

• Complete kit — no additional parts required

• Smooth sealed bearings for long service life

• Low-profile “hella flush” top cover for clean aesthetics

• Designed for tapered steerer mountain & e-MTB frames

• Ideal for maintenance, rebuilds, or frame swaps

Compatibility (OEM Use)

Compatible with the following Specialized mountain and electric mountain bikes:

• Camber FSR

• Camber FSR Men

• Camber FSR Women

• Enduro

• Enduro FSR

• Epic FSR

• Epic Hardtail

• Fatboy

• Fuse

• Kenevo

• Kenevo FSR

• Levo

• Levo FSR

• Levo FSR Men

• Levo FSR Women

• Levo Hardtail

• Levo Hardtail Fat

• Levo Hardtail Men

• Levo Hardtail Women

• Levo Men

• Levo Women

• Rhyme FSR

• Rumor FSR

• Stumpjumper

• Stumpjumper FSR

• Stumpjumper FSR Men

• Stumpjumper FSR ST Men

• Stumpjumper FSR ST Women

• Stumpjumper FSR Women

• Stumpjumper Hardtail

• Stumpjumper ST

Compatibility Notes

• Designed for tapered steerer tubes (1-1/8" to 1.5")

• Integrated headset design (IS)

• Crown race and compression components included

• Always verify frame bearing dimensions before ordering