Cannondale supersix evo hm headset ball Bearings measure

[rickytek]

Hi guys! Does Anyone know the exact measurements about headset ball bearings of cannondale super6 evo hm ???
Thanks in advance,
Riccardo

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[stormur]

top or bottom beairngs ?

[rickytek]

Both!! Thx!

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[stormur]

upper is totally standard 1 1/8 45 degrees Campa style. Bottom is proprietary Cannondale bearing.

[Skylark]

Bottom bearing isn't proprietary.

Both are Campy style 45 x 45. Top is 1 1/8" yes and bottom is 1 1/4". Top is 42mm OD and bottom is 47.5mm OD.

Chinese seller sell a lot of these as aftermarkets.

1 1/2" bottom headset bearing is still preferably in terms of handling which they dropped in favor of 1 1/4" to make the headtube smaller for aerodynamics. Specialized also reduced their bottom diameter from 1 1/2" to 1 3/8" at the same time. Comes across as fickle to me as the larger bottom bearings gives less twitchy ride handling around fast corners. Wish they'd go back.

[rickytek]

Bottom bearing isn't proprietary.

Both are Campy style 45 x 45. Top is 1 1/8" yes and bottom is 1 1/4". Top is 42mm OD and bottom is 47.5mm OD.

Chinese seller sell a lot of these as aftermarkets.

1 1/2" bottom headset bearing is still preferably in terms of handling which they dropped in favor of 1 1/4" to make the headtube smaller for aerodynamics. Specialized also reduced their bottom diameter from 1 1/2" to 1 3/8" at the same time. Comes across as fickle to me as the larger bottom bearings gives less twitchy ride handling around fast corners. Wish they'd go back.

Thx, guys can I have measures in mm??? Thx again
Richard

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