Cannondale CAADX, Optimo Headset, CK3557U00OS

Cannondale CAADX, Optimo Headset, CK3557U00OS

• Upper 1 1/8" bearing - MR155, 45 x 45, 7.5 x 30.9 x 41.8mm
• Lower 1 1/4" bearing - MR100, 45 x 45, 7.3 x 34 x 46.8mm

Upper bearing same as FSA Bearing MR155 ACB TH-870DJ 1 1/8" 41.8mm, height 7.5mm, 45deg x 45deg (used in CK3557U00OS)

Lower bearing same as FSA Bearing MR100 ACB TH-970DJ 1 1/4" 46.8MM 45deg x 45deg (used in CK3557U00OS)

This headset can be replaced with Cannondale 1 1/8 to 1 1/4 Carbon Headset, No Crown Race, K35028 and crown race Cane Creek Conversion Crown Race

Bike Platforms that feature this product:

(this list is not exhaustive - there could be other platforms that use this product)