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Return& Item Quality control:
1 year warranty 
 

Sealed Cartridge headset Bearings for headset on Specialized:

Fit with:

Specialized Tarmac SL2/SL3 (1 1/8" Top, 1 1/2" Bottom)

Specialized Tarmac SL4 (1 1/8" Top, 1 3/8" Bottom)

Specialized Tarmac SL5 Size: 49/52 (1 1/8" Top, 1 1/4" Bottom)

Specialized Tarmac SL5 Size: 54/56 (1 1/8" Top, 1 3/8" Bottom)

Specialized Tarmac SL5 Size: 58/61 (1 1/8" Top, 1 1/2" Bottom)

Specialized Tarmac SL6 (1 1/8" Top, 1 1/2" Bottom)

Specialized Tarmac SL7 (Special 1 1/8" Top, 1 1/2" Bottom)

2 Types of Bearing Option:

Steel

Race Material: P6 bearing steel
Ball Material: P6 bearing steel
Enclosure: 2 Rubber Seals

Ceramics:


Race Material: P6 bearing steel
Ball Material: Nitrided Silicon Ceramic SI3N4
Enclosure: 2 Rubber Seals