SPECIALIZED ROUBAIX PRO, EXPERT HEADSET CAMPY STYLE WITH 49mm LOWER

Part number: w90930001

INCLUDES (in order)
1X 10mm carbon spacer
2X 5mm carbon spacers
carbon top cap conical spacer
CAMPY STYLE upper bearing MH-P08F (ø41.8x8x45°)
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OVERSIZE 49mm lower bearing MH-P21 (ø49x7x45°)



extract from the PARKTOOLS website ;The integrated system uses cartridge bearings that are supported by machining in a specially shaped head tube. The frame may also use pressed rings or retainers inside the headtube. A cartridge bearing slips into these "cups" or supports, and is simply lifted out for replacement. There is no contact with the headtube face. The bearing sits inside the headtube, and references the angular contact. There are different standards within this integrated-angular contact family, and these are not interchangeable

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